{"id":49327,"date":"2021-01-11T19:37:03","date_gmt":"2021-01-11T17:37:03","guid":{"rendered":"https:\/\/omathimatikos.gr\/?p=49327"},"modified":"2021-01-11T09:43:17","modified_gmt":"2021-01-11T07:43:17","slug":"o-landau-%ce%ba%ce%b1%ce%b9-%ce%bf%ce%b9-%cf%80%ce%b9%ce%bd%ce%b1%ce%ba%ce%af%ce%b4%ce%b5%cf%82-%ce%ba%cf%85%ce%ba%ce%bb%ce%bf%cf%86%ce%bf%cf%81%ce%af%ce%b1%cf%82-%ce%b1%cf%85%cf%84%ce%bf%ce%ba%ce%b9","status":"publish","type":"post","link":"https:\/\/omathimatikos.gr\/?p=49327","title":{"rendered":"O Landau \u03ba\u03b1\u03b9 \u03bf\u03b9 \u03c0\u03b9\u03bd\u03b1\u03ba\u03af\u03b4\u03b5\u03c2 \u03ba\u03c5\u03ba\u03bb\u03bf\u03c6\u03bf\u03c1\u03af\u03b1\u03c2 \u03b1\u03c5\u03c4\u03bf\u03ba\u03b9\u03bd\u03ae\u03c4\u03c9\u03bd"},"content":{"rendered":"<p><!--more--><\/p>\n<p><strong>\u039c\u03b1\u03b8\u03b7\u03bc\u03b1\u03c4\u03b9\u03ba\u03ac \u03ba\u03b1\u03c4\u03bf\u03c1\u03b8\u03ce\u03bc\u03b1\u03c4\u03b1 \u03b5\u03bd\u03cc\u03c2 \u03bc\u03b5\u03b3\u03ac\u03bb\u03bf\u03c5 \u03c6\u03c5\u03c3\u03b9\u03ba\u03bf\u03cd<\/strong><\/p>\n<div dir=\"ltr\"><a href=\"https:\/\/physicsgg.files.wordpress.com\/2011\/06\/landau.jpg\"><img decoding=\"async\" class=\"alignleft size-full wp-image-4651\" title=\"LANDAU\" src=\"https:\/\/physicsgg.files.wordpress.com\/2011\/06\/landau.jpg?w=700\" sizes=\"(max-width: 213px) 100vw, 213px\" srcset=\"https:\/\/physicsgg.files.wordpress.com\/2011\/06\/landau.jpg 213w, https:\/\/physicsgg.files.wordpress.com\/2011\/06\/landau.jpg?w=135 135w\" alt=\"\" data-attachment-id=\"4651\" data-permalink=\"https:\/\/physicsgg.me\/2011\/06\/22\/o-landau-%ce%ba%ce%b1%ce%b9-%ce%bf%ce%b9-%cf%80%ce%b9%ce%bd%ce%b1%ce%ba%ce%af%ce%b4%ce%b5%cf%82-%ce%ba%cf%85%ce%ba%ce%bb%ce%bf%cf%86%ce%bf%cf%81%ce%af%ce%b1%cf%82-%ce%b1%cf%85%cf%84%ce%bf%ce%ba\/landau\/\" data-orig-file=\"https:\/\/physicsgg.files.wordpress.com\/2011\/06\/landau.jpg\" data-orig-size=\"213,237\" data-comments-opened=\"1\" data-image-meta=\"{&quot;aperture&quot;:&quot;0&quot;,&quot;credit&quot;:&quot;&quot;,&quot;camera&quot;:&quot;&quot;,&quot;caption&quot;:&quot;&quot;,&quot;created_timestamp&quot;:&quot;0&quot;,&quot;copyright&quot;:&quot;&quot;,&quot;focal_length&quot;:&quot;0&quot;,&quot;iso&quot;:&quot;0&quot;,&quot;shutter_speed&quot;:&quot;0&quot;,&quot;title&quot;:&quot;&quot;}\" data-image-title=\"LANDAU\" data-image-description=\"\" data-medium-file=\"https:\/\/physicsgg.files.wordpress.com\/2011\/06\/landau.jpg?w=213\" data-large-file=\"https:\/\/physicsgg.files.wordpress.com\/2011\/06\/landau.jpg?w=213\" data-recalc-dims=\"1\" \/><\/a>O\u00a0Lev D. Landau\u00a0\u03b1\u03bd\u03b1\u03b3\u03bd\u03c9\u03c1\u03af\u03b6\u03b5\u03c4\u03b1\u03b9 \u03b3\u03b5\u03bd\u03b9\u03ba\u03ce\u03c2 \u03c9\u03c2 \u03ad\u03bd\u03b1\u03c2 \u03b1\u03c0\u03cc \u03c4\u03bf\u03c5\u03c2 \u03bc\u03b5\u03b3\u03b1\u03bb\u03cd\u03c4\u03b5\u03c1\u03bf\u03c5\u03c2 \u03c6\u03c5\u03c3\u03b9\u03ba\u03bf\u03cd\u03c2 \u03c4\u03bf\u03c5 20\u03bf\u03c5 \u03b1\u03b9\u03ce\u03bd\u03b1. \u0391\u03bd\u03b1\u03ba\u03ac\u03bb\u03c5\u03c8\u03b5 \u03b8\u03b5\u03bc\u03b5\u03bb\u03b9\u03ce\u03b4\u03b7 \u03b1\u03c0\u03bf\u03c4\u03b5\u03bb\u03ad\u03c3\u03bc\u03b1\u03c4\u03b1 \u03c3\u03b5 \u03c0\u03bf\u03bb\u03bb\u03ad\u03c2 \u03c0\u03b5\u03c1\u03b9\u03bf\u03c7\u03ad\u03c2 \u03c4\u03b7\u03c2 \u03b8\u03b5\u03c9\u03c1\u03b7\u03c4\u03b9\u03ba\u03ae\u03c2 \u03c6\u03c5\u03c3\u03b9\u03ba\u03ae\u03c2 \u03ba\u03b1\u03b9 \u03c5\u03c0\u03ae\u03c1\u03be\u03b5 \u03b9\u03b4\u03c1\u03c5\u03c4\u03ae\u03c2 \u03ba\u03b1\u03b9 \u03b4\u03b9\u03b5\u03c5\u03b8\u03c5\u03bd\u03c4\u03ae\u03c2 \u03c4\u03b7\u03c2 \u03c3\u03bf\u03b2\u03b9\u03b5\u03c4\u03b9\u03ba\u03ae\u03c2 \u03c3\u03c7\u03bf\u03bb\u03ae\u03c2 \u03c4\u03c9\u03bd \u03b8\u03b5\u03c9\u03c1\u03b7\u03c4\u03b9\u03ba\u03ce\u03bd \u03c6\u03c5\u03c3\u03b9\u03ba\u03ce\u03bd. \u039c\u03b1\u03b6\u03af \u03bc\u03b5 \u03c4\u03bf\u03bd \u0395. Lifshitz \u03ba\u03b1\u03c4\u03ac\u03c6\u03b5\u03c1\u03b1\u03bd \u03ad\u03bd\u03b1 \u03c0\u03c1\u03b1\u03b3\u03bc\u03b1\u03c4\u03b9\u03ba\u03cc \u03b5\u03c0\u03b9\u03c3\u03c4\u03b7\u03bc\u03bf\u03bd\u03b9\u03ba\u03cc \u03b5\u03c0\u03af\u03c4\u03b5\u03c5\u03b3\u03bc\u03b1: \u03b4\u03b7\u03bc\u03b9\u03bf\u03cd\u03c1\u03b3\u03b7\u03c3\u03b1\u03bd \u03bc\u03b9\u03b1 \u03b5\u03b3\u03ba\u03c5\u03ba\u03bb\u03bf\u03c0\u03b1\u03af\u03b4\u03b5\u03b9\u03b1 \u03c4\u03b7\u03c2 \u03b8\u03b5\u03c9\u03c1\u03b7\u03c4\u03b9\u03ba\u03ae\u03c2 \u03c6\u03c5\u03c3\u03b9\u03ba\u03ae\u03c2 \u2013 \u03c4\u03b7\u03bd \u03c0\u03b5\u03c1\u03af\u03c6\u03b7\u03bc\u03b7 \u03c3\u03b5\u03b9\u03c1\u03ac \u03b5\u03b3\u03c7\u03b5\u03b9\u03c1\u03b9\u03b4\u03af\u03c9\u03bd Course of Theoretical Physics \u03c0\u03bf\u03c5 \u03ae\u03b4\u03b7 \u03ad\u03c7\u03b5\u03b9 \u03b8\u03c1\u03ad\u03c8\u03b5\u03b9 \u03c0\u03bf\u03bb\u03bb\u03ad\u03c2 \u03b3\u03b5\u03bd\u03b9\u03ad\u03c2 \u03b5\u03ba\u03ba\u03bf\u03bb\u03b1\u03c0\u03c4\u03cc\u03bc\u03b5\u03bd\u03c9\u03bd \u03c6\u03c5\u03c3\u03b9\u03ba\u03ce\u03bd. \u03a4\u03b1 \u03bc\u03b1\u03b8\u03b7\u03bc\u03b1\u03c4\u03b9\u03ba\u03ac \u03b1\u03c0\u03bf\u03c4\u03b5\u03bb\u03bf\u03cd\u03bd \u03b1\u03c0\u03b1\u03c1\u03b1\u03af\u03c4\u03b7\u03c4\u03bf \u03b5\u03c1\u03b3\u03b1\u03bb\u03b5\u03af\u03bf \u03b3\u03b9\u03b1 \u03c4\u03bf\u03bd \u03b8\u03b5\u03c9\u03c1\u03b7\u03c4\u03b9\u03ba\u03cc \u03c6\u03c5\u03c3\u03b9\u03ba\u03cc. \u039f\u03b9 \u03b8\u03b5\u03c9\u03c1\u03b7\u03c4\u03b9\u03ba\u03bf\u03af \u03c6\u03c5\u03c3\u03b9\u03ba\u03bf\u03af \u03b5\u03af\u03bd\u03b1\u03b9 \u03b1\u03b4\u03cd\u03bd\u03b1\u03c4\u03bf \u03bd\u03b1 \u03b5\u03c1\u03b3\u03b1\u03c3\u03c4\u03bf\u03cd\u03bd \u03c7\u03c9\u03c1\u03af\u03c2 \u03ba\u03b1\u03bb\u03ae \u03b3\u03bd\u03ce\u03c3\u03b7 \u03c4\u03c9\u03bd \u03bc\u03b1\u03b8\u03b7\u03bc\u03b1\u03c4\u03b9\u03ba\u03ce\u03bd. \u03a9\u03c3\u03c4\u03cc\u03c3\u03bf \u03c5\u03c0\u03ac\u03c1\u03c7\u03bf\u03c5\u03bd \u03c0\u03bf\u03bb\u03bb\u03ac \u03b5\u03c0\u03af\u03c0\u03b5\u03b4\u03b1 \u03b9\u03ba\u03b1\u03bd\u03cc\u03c4\u03b7\u03c4\u03b1\u03c2.<br \/>\n\u0397 \u03b9\u03ba\u03b1\u03bd\u03cc\u03c4\u03b7\u03c4\u03b1 \u03c4\u03bf\u03c5 Landau \u03c3\u03c4\u03b1 \u03bc\u03b1\u03b8\u03b7\u03bc\u03b1\u03c4\u03b9\u03ba\u03ac \u03ae\u03c4\u03b1\u03bd \u03ba\u03b1\u03c4\u03b1\u03c0\u03bb\u03b7\u03ba\u03c4\u03b9\u03ba\u03ae. \u0391\u03bd \u03ad\u03c7\u03b5\u03c4\u03b5 \u03c4\u03b7\u03bd \u03b5\u03c5\u03ba\u03b1\u03b9\u03c1\u03af\u03b1 \u03bd\u03b1 \u03b4\u03b9\u03b1\u03b2\u03ac\u03c3\u03b5\u03c4\u03b5 \u03c4\u03b1 \u03b2\u03b9\u03b2\u03bb\u03af\u03b1 \u03c4\u03bf\u03c5, \u03b8\u03b1 \u03ba\u03b1\u03c4\u03b1\u03bb\u03ac\u03b2\u03b5\u03c4\u03b5 \u03bc\u03b5 \u03c0\u03cc\u03c3\u03b7 \u03b5\u03c5\u03ba\u03bf\u03bb\u03af\u03b1 \u03be\u03b5\u03c0\u03b5\u03c1\u03bd\u03bf\u03cd\u03c3\u03b5 \u03c4\u03b1 \u03bc\u03b1\u03b8\u03b7\u03bc\u03b1\u03c4\u03b9\u03ba\u03ac \u03c0\u03c1\u03bf\u03b2\u03bb\u03ae\u03bc\u03b1\u03c4\u03b1 \u2013 \u03ae \u03af\u03c3\u03c9\u03c2 \u03b4\u03b5\u03bd \u03c4\u03b1 \u03b1\u03b9\u03c3\u03b8\u03b1\u03bd\u03cc\u03c4\u03b1\u03bd \u03ba\u03b1\u03bd \u03c9\u03c2 \u03c0\u03c1\u03bf\u03b2\u03bb\u03ae\u03bc\u03b1\u03c4\u03b1.<br \/>\n\u03a3\u03c4\u03bf \u03c4\u03ad\u03bb\u03bf\u03c2 \u03c4\u03b7\u03c2 \u03b4\u03b5\u03ba\u03b1\u03b5\u03c4\u03af\u03b1\u03c2 \u03c4\u03bf\u03c5 1940, \u03cc\u03c4\u03b1\u03bd \u03ae\u03bc\u03bf\u03c5\u03bd \u03c6\u03bf\u03b9\u03c4\u03b7\u03c4\u03ae\u03c2 \u03c3\u03c4\u03bf \u03a0\u03b1\u03bd\u03b5\u03c0\u03b9\u03c3\u03c4\u03ae\u03bc\u03b9\u03bf \u03c4\u03bf\u03c5 \u03a7\u03ac\u03c1\u03ba\u03bf\u03b2\u03bf, \u03bf Landau \u03ae\u03c4\u03b1\u03bd \u03b5\u03be\u03b1\u03b9\u03c1\u03b5\u03c4\u03b9\u03ba\u03ac \u03b4\u03b7\u03bc\u03bf\u03c6\u03b9\u03bb\u03ae\u03c2 \u03c3\u03c4\u03bf\u03c5\u03c2 \u03c6\u03bf\u03b9\u03c4\u03b7\u03c4\u03ad\u03c2 \u03c4\u03bf\u03c5 \u03a4\u03bc\u03ae\u03bc\u03b1\u03c4\u03bf\u03c2 \u03a6\u03c5\u03c3\u03b9\u03ba\u03ae\u03c2. \u03a3\u03c4\u03b7 \u03b4\u03b5\u03ba\u03b1\u03b5\u03c4\u03af\u03b1 \u03c4\u03bf\u03c5 1930, \u03bf Landau \u03b5\u03af\u03c7\u03b5 \u03b5\u03c1\u03b3\u03b1\u03c3\u03c4\u03b5\u03af \u03c3\u03c4\u03bf \u03a7\u03ac\u03c1\u03ba\u03bf\u03b2\u03bf \u03b4\u03af\u03bd\u03bf\u03bd\u03c4\u03b1\u03c2 \u03b4\u03b9\u03b1\u03bb\u03ad\u03be\u03b5\u03b9\u03c2 \u03c3\u03c4\u03bf \u03a0\u03b1\u03bd\u03b5\u03c0\u03b9\u03c3\u03c4\u03ae\u03bc\u03b9\u03bf, \u03ba\u03b1\u03b9 \u03ad\u03c4\u03c3\u03b9 \u03c5\u03c0\u03ae\u03c1\u03c7\u03b1\u03bd \u03b1\u03bd\u03b1\u03c1\u03af\u03b8\u03bc\u03b7\u03c4\u03bf\u03b9 \u03b8\u03c1\u03cd\u03bb\u03bf\u03b9 (\u03ae \u03b3\u03b5\u03b3\u03bf\u03bd\u03cc\u03c4\u03b1) \u03c0\u03bf\u03c5 \u03b4\u03b9\u03b1\u03b4\u03af\u03b4\u03bf\u03bd\u03c4\u03b1\u03bd \u03b1\u03c0\u03cc \u03c3\u03c4\u03cc\u03bc\u03b1 \u03c3\u03b5 \u03c3\u03c4\u03cc\u03bc\u03b1. \u03a5\u03c0\u03ae\u03c1\u03c7\u03b5 \u03b7 \u03b9\u03c3\u03c4\u03bf\u03c1\u03af\u03b1 \u03cc\u03c4\u03b9 \u03c3\u03c4\u03b7 \u03bc\u03ad\u03c3\u03b7 \u03c4\u03b7\u03c2 \u03b4\u03b9\u03ac\u03bb\u03b5\u03be\u03ae\u03c2 \u03c4\u03bf\u03c5 \u03b1\u03bd\u03ad\u03c6\u03b5\u03c1\u03b5 \u03c0\u03c9\u03c2 \u00ab\u03c4\u03bf \u03b7\u03bb\u03b5\u03ba\u03c4\u03c1\u03cc\u03bd\u03b9\u03bf \u03b5\u03af\u03bd\u03b1\u03b9 \u03bc\u03b9\u03b1 \u03bc\u03b9\u03ba\u03c1\u03ae \u03ba\u03af\u03c4\u03c1\u03b9\u03bd\u03b7 \u03bc\u03c0\u03ac\u03bb\u03b1\u2026\u00bb, \u03c7\u03c9\u03c1\u03af\u03c2 \u03bf \u03c4\u03cc\u03bd\u03bf\u03c2 \u03c4\u03b7\u03c2 \u03c6\u03c9\u03bd\u03ae\u03c2 \u03c4\u03bf\u03c5 \u03bd\u03b1 \u03b4\u03af\u03bd\u03b5\u03b9 \u03c4\u03b7\u03bd \u03c0\u03b1\u03c1\u03b1\u03bc\u03b9\u03ba\u03c1\u03ae \u03ad\u03bd\u03b4\u03b5\u03b9\u03be\u03b7 \u03cc\u03c4\u03b9 \u03ad\u03bb\u03b5\u03b3\u03b5 \u03b1\u03c3\u03c5\u03bd\u03b1\u03c1\u03c4\u03b7\u03c3\u03af\u03b5\u03c2. \u039f\u03b9 \u03c6\u03bf\u03b9\u03c4\u03b7\u03c4\u03ad\u03c2 \u03c3\u03b7\u03bc\u03b5\u03af\u03c9\u03bd\u03b1\u03bd \u03b5\u03c0\u03b9\u03bc\u03b5\u03bb\u03ce\u03c2 \u03c4\u03b7 \u03c6\u03c1\u03ac\u03c3\u03b7, \u03ba\u03b1\u03b9 \u03c4\u03cc\u03c4\u03b5 \u03bf Landau \u03be\u03ad\u03c3\u03c0\u03b1\u03b3\u03b5 \u03bc\u03b5 \u03b5\u03ba\u03c6\u03c1\u03ac\u03c3\u03b5\u03b9\u03c2 \u03c0\u03bf\u03c5 \u03b4\u03b5\u03bd \u03ac\u03c6\u03b7\u03bd\u03b1\u03bd \u03c0\u03b5\u03c1\u03b9\u03b8\u03ce\u03c1\u03b9\u03bf \u03b3\u03b9\u03b1 \u03c0\u03b1\u03c1\u03b5\u03c1\u03bc\u03b7\u03bd\u03b5\u03af\u03b5\u03c2 \u03c4\u03bf\u03c5\u03c2 \u03ad\u03b4\u03b9\u03bd\u03b5 \u03bd\u03b1 \u03ba\u03b1\u03c4\u03b1\u03bb\u03ac\u03b2\u03bf\u03c5\u03bd \u00ab\u03c4\u03b9 \u03c0\u03af\u03c3\u03c4\u03b5\u03c5\u03b5 \u03b3\u03b9\u2019 \u03b1\u03c5\u03c4\u03bf\u03cd\u03c2\u00bb. \u03a5\u03c0\u03ac\u03c1\u03c7\u03bf\u03c5\u03bd \u03b5\u03c0\u03af\u03c3\u03b7\u03c2 \u03c0\u03bf\u03bb\u03bb\u03ad\u03c2 \u03b9\u03c3\u03c4\u03bf\u03c1\u03af\u03b5\u03c2 \u03b3\u03b9\u03b1 \u03c4\u03b9\u03c2 \u03c5\u03c0\u03b5\u03c1\u03b2\u03bf\u03bb\u03ad\u03c2 \u03c4\u03bf\u03c5 \u03ba\u03b1\u03c4\u03ac \u03c4\u03b9\u03c2 \u03b5\u03be\u03b5\u03c4\u03ac\u03c3\u03b5\u03b9\u03c2\u2026..<\/p>\n<p>\u0399\u03b4\u03b9\u03b1\u03b9\u03c4\u03ad\u03c1\u03c9\u03c2 \u03b4\u03b7\u03bc\u03bf\u03c6\u03b9\u03bb\u03b5\u03af\u03c2 \u03ae\u03c4\u03b1\u03bd \u03bf\u03b9 \u03b9\u03c3\u03c4\u03bf\u03c1\u03af\u03b5\u03c2 \u03c3\u03c7\u03b5\u03c4\u03b9\u03ba\u03ac \u03bc\u03b5 \u03c4\u03bf \u03bc\u03b1\u03b8\u03b7\u03bc\u03b1\u03c4\u03b9\u03ba\u03cc \u03c4\u03b1\u03bb\u03ad\u03bd\u03c4\u03bf \u03c4\u03bf\u03c5 Landau. \u0395\u03ba\u03b5\u03af\u03bd\u03b7 \u03c4\u03b7\u03bd \u03b5\u03c0\u03bf\u03c7\u03ae \u03bc\u03b5\u03bb\u03b5\u03c4\u03bf\u03cd\u03c3\u03b1\u03bc\u03b5 \u03bc\u03b1\u03b8\u03b7\u03bc\u03b1\u03c4\u03b9\u03ba\u03ac \u03b1\u03c0\u03cc \u03ad\u03bd\u03b1 \u03b2\u03b9\u03b2\u03bb\u03af\u03bf \u03bc\u03b5 \u03c3\u03c5\u03bb\u03bb\u03bf\u03b3\u03ae \u03c0\u03c1\u03bf\u03b2\u03bb\u03b7\u03bc\u03ac\u03c4\u03c9\u03bd \u03c3\u03c4\u03bf \u03bf\u03c0\u03bf\u03af\u03bf \u03bf\u03b9 \u03c6\u03bf\u03b9\u03c4\u03b7\u03c4\u03ad\u03c2 \u03b5\u03af\u03c7\u03b1\u03bd \u03b4\u03ce\u03c3\u03b5\u03b9 \u03c4\u03b7\u03bd \u03c0\u03c1\u03bf\u03c3\u03c9\u03bd\u03c5\u03bc\u03af\u03b1 \u00ab\u039f\u03b9 \u03b4\u03ad\u03ba\u03b1 \u03c3\u03c5\u03b3\u03b3\u03c1\u03b1\u03c6\u03b5\u03af\u03c2\u00bb \u0395\u03b8\u03b5\u03c9\u03c1\u03b5\u03af\u03c4\u03bf \u03b5\u03be\u03b1\u03b9\u03c1\u03b5\u03c4\u03b9\u03ba\u03ac \u03b4\u03cd\u03c3\u03ba\u03bf\u03bb\u03bf. \u03a3\u03c4\u03b7\u03bd \u03c0\u03c1\u03b1\u03b3\u03bc\u03b1\u03c4\u03b9\u03ba\u03cc\u03c4\u03b7\u03c4\u03b1, \u03b4\u03b5\u03bd \u03ba\u03b1\u03c4\u03b1\u03c6\u03ad\u03c1\u03bd\u03b1\u03bc\u03b5 \u03c0\u03ac\u03bd\u03c4\u03b1 \u03bd\u03b1 \u03bb\u03cd\u03bd\u03bf\u03c5\u03bc\u03b5 \u03c4\u03b1 \u03c0\u03c1\u03bf\u03b2\u03bb\u03ae\u03bc\u03b1\u03c4\u03b1. \u03a5\u03c0\u03ae\u03c1\u03c7\u03b5 \u03bb\u03bf\u03b9\u03c0\u03cc\u03bd \u03bf \u03b8\u03c1\u03cd\u03bb\u03bf\u03c2 (\u03ae \u03bc\u03ae\u03c0\u03c9\u03c2 \u03ae\u03c4\u03b1\u03bd \u03b1\u03bb\u03ae\u03b8\u03b5\u03b9\u03b1) \u03cc\u03c4\u03b9 \u03bf Landau \u03b5\u03af\u03c7\u03b5 \u03bb\u03cd\u03c3\u03b5\u03b9 \u03cc\u03bb\u03b1 \u03c4\u03b1 \u03c0\u03c1\u03bf\u03b2\u03bb\u03ae\u03bc\u03b1\u03c4\u03b1 \u03c4\u03c9\u03bd \u0394\u03ad\u03ba\u03b1 \u03c3\u03c5\u03b3\u03b3\u03c1\u03b1\u03c6\u03ad\u03c9\u03bd \u03b1\u03c0\u03cc \u03b4\u03c5\u03bf \u03c6\u03bf\u03c1\u03ad\u03c2: \u03bc\u03af\u03b1 \u03bc\u03b5 \u03ba\u03ac\u03c0\u03bf\u03b9\u03bf \u03b3\u03bd\u03c9\u03c3\u03c4\u03cc \u03c4\u03c1\u03cc\u03c0\u03bf \u03ba\u03b1\u03b9 \u03bc\u03b9\u03b1 \u03bc\u03b5 \u03c4\u03bf\u03bd \u03ba\u03b1\u03bb\u03cc!<br \/>\n\u039a\u03b1\u03b9 \u03b9\u03b4\u03bf\u03cd \u03c4\u03b9 \u03ac\u03ba\u03bf\u03c5\u03c3\u03b1 \u03b1\u03c0\u03cc \u03c4\u03bf\u03bd \u03b4\u03ac\u03c3\u03ba\u03b1\u03bb\u03cc \u03bc\u03bf\u03c5 \u03c4\u03bf\u03bd I.M. Lifshitz \u2013 \u03b8\u03b5\u03c9\u03c1\u03b7\u03c4\u03b9\u03ba\u03cc \u03c6\u03c5\u03c3\u03b9\u03ba\u03cc \u03bc\u03b5 \u03ac\u03c1\u03b9\u03c3\u03c4\u03b5\u03c2 \u03b3\u03bd\u03ce\u03c3\u03b5\u03b9\u03c2 \u03bc\u03b1\u03b8\u03b7\u03bc\u03b1\u03c4\u03b9\u03ba\u03ce\u03bd.<br \/>\n\u039f Landau \u03c0\u03af\u03c3\u03c4\u03b5\u03c5\u03b5 \u03cc\u03c4\u03b9 \u03b4\u03b5\u03bd \u03c5\u03c0\u03ac\u03c1\u03c7\u03b5\u03b9 \u03b1\u03bd\u03ac\u03b3\u03ba\u03b7 \u03b5\u03b9\u03b4\u03b9\u03ba\u03ae\u03c2 \u03bc\u03b5\u03bb\u03ad\u03c4\u03b7\u03c2 \u03c4\u03b7\u03c2 \u03b8\u03b5\u03c9\u03c1\u03af\u03b1\u03c2 \u03c0\u03b9\u03b8\u03b1\u03bd\u03bf\u03c4\u03ae\u03c4\u03c9\u03bd. \u0391\u03bd \u03ba\u03b1\u03c4\u03b1\u03bd\u03bf\u03bf\u03cd\u03bc\u03b5 \u03c4\u03bf \u03c0\u03c1\u03cc\u03b2\u03bb\u03b7\u03bc\u03b1, \u03bc\u03c0\u03bf\u03c1\u03bf\u03cd\u03bc\u03b5, \u03bc\u03c0\u03bf\u03c1\u03bf\u03cd\u03bc\u03b5 \u03c0\u03ac\u03bd\u03c4\u03bf\u03c4\u03b5 \u03bd\u03b1 \u03b2\u03c1\u03bf\u03cd\u03bc\u03b5 \u03c4\u03b7\u03bd \u03b1\u03c0\u03ac\u03bd\u03c4\u03b7\u03c3\u03b7 \u03bc\u03b5 \u03c4\u03b7 \u03b2\u03bf\u03ae\u03b8\u03b5\u03b9\u03b1 \u03c4\u03b7\u03c2 \u03ba\u03bf\u03b9\u03bd\u03ae\u03c2 \u03bb\u03bf\u03b3\u03b9\u03ba\u03ae\u03c2 \u03ba\u03b1\u03b9, \u03b1\u03bd \u03b5\u03af\u03bd\u03b1\u03b9 \u03b1\u03bd\u03ac\u03b3\u03ba\u03b7, \u03bc\u03b5 \u03c4\u03bf \u03b4\u03b9\u03b1\u03c6\u03bf\u03c1\u03b9\u03ba\u03cc \u03ba\u03b1\u03b9 \u03c4\u03bf\u03bd \u03bf\u03bb\u03bf\u03ba\u03bb\u03b7\u03c1\u03c9\u03c4\u03b9\u03ba\u03cc \u03bb\u03bf\u03b3\u03b9\u03c3\u03bc\u03cc.<br \/>\n\u039c\u03b9\u03b1 \u03c6\u03bf\u03c1\u03ac \u03bf Lifshitz \u03b4\u03b9\u03b1\u03c6\u03c9\u03bd\u03bf\u03cd\u03c3\u03b5 \u03bc\u03b5 \u03c4\u03bf\u03bd Landau, \u03bf\u03c0\u03cc\u03c4\u03b5 \u03c4\u03bf\u03c5 \u03ad\u03b4\u03c9\u03c3\u03b5 \u03ad\u03bd\u03b1 \u03b4\u03cd\u03c3\u03ba\u03bf\u03bb\u03bf \u03c0\u03c1\u03cc\u03b2\u03bb\u03b7\u03bc\u03b1 \u03c4\u03b7\u03c2 \u03b8\u03b5\u03c9\u03c1\u03af\u03b1\u03c2 \u03c0\u03b9\u03b8\u03b1\u03bd\u03bf\u03c4\u03ae\u03c4\u03c9\u03bd. \u039f Landau \u03b4\u03b5\u03bd \u03ba\u03b1\u03c4\u03ac\u03c6\u03b5\u03c1\u03b5 \u03bd\u03b1 \u03b2\u03c1\u03b5\u03b9 \u03b1\u03bc\u03ad\u03c3\u03c9\u03c2 \u03ba\u03b1\u03b9 \u03bc\u03b5 \u03c4\u03bf \u00ab\u03bc\u03c5\u03b1\u03bb\u03cc\u00bb \u03c4\u03b7\u03bd \u03b1\u03c0\u03ac\u03bd\u03c4\u03b7\u03c3\u03b7, \u03ba\u03b1\u03b9 \u03b1\u03c5\u03c4\u03cc \u03c4\u03bf\u03bd \u03b5\u03bd\u03cc\u03c7\u03bb\u03b7\u03c3\u03b5. \u03a4\u03bf \u03b1\u03c0\u03cc\u03b3\u03b5\u03c5\u03bc\u03b1 \u03cc\u03bc\u03c9\u03c2 \u03ba\u03ac\u03bb\u03b5\u03c3\u03b5 \u03c4\u03bf\u03bd Lifshitz \u03ba\u03b1\u03b9 \u03c4\u03bf\u03c5 \u03c0\u03b1\u03c1\u03bf\u03c5\u03c3\u03af\u03b1\u03c3\u03b5 \u03bc\u03b9\u03b1 \u03c0\u03c1\u03c9\u03c4\u03cc\u03c4\u03c5\u03c0\u03b7 \u03ba\u03b1\u03b9 \u03c3\u03c9\u03c3\u03c4\u03ae \u03bb\u03cd\u03c3\u03b7 \u03c4\u03bf\u03c5 \u03c0\u03c1\u03bf\u03b2\u03bb\u03ae\u03bc\u03b1\u03c4\u03bf\u03c2. \u0394\u03c5\u03c3\u03c4\u03c5\u03c7\u03ce\u03c2 \u03ad\u03c7\u03c9 \u03be\u03b5\u03c7\u03ac\u03c3\u03b5\u03b9 \u03c4\u03bf \u03c0\u03c1\u03cc\u03b2\u03bb\u03b7\u03bc\u03b1, \u03b8\u03c5\u03bc\u03ac\u03bc\u03b1\u03b9 \u03cc\u03bc\u03c9\u03c2 \u03cc\u03c4\u03b9 \u03b4\u03b5\u03bd \u03ae\u03c4\u03b1\u03bd \u03c4\u03b5\u03c4\u03c1\u03b9\u03bc\u03bc\u03ad\u03bd\u03bf.<br \/>\n\u039f Landau \u03c0\u03af\u03c3\u03c4\u03b5\u03c5\u03b5 \u03c3\u03c4\u03b9\u03c2 \u03bc\u03b1\u03b8\u03b7\u03bc\u03b1\u03c4\u03b9\u03ba\u03ad\u03c2 \u03c4\u03bf\u03c5 \u03b9\u03ba\u03b1\u03bd\u03cc\u03c4\u03b7\u03c4\u03b5\u03c2 \u2013 \u03ba\u03b1\u03b9, \u03b1\u03bd\u03b1\u03bc\u03c6\u03af\u03b2\u03bf\u03bb\u03b1, \u03b5\u03af\u03c7\u03b5 \u03ba\u03ac\u03b8\u03b5 \u03bb\u03cc\u03b3\u03bf \u03bd\u03b1 \u03c4\u03bf \u03ba\u03ac\u03bd\u03b5\u03b9. \u039c\u03b5\u03c1\u03b9\u03ba\u03ad\u03c2 \u03c6\u03bf\u03c1\u03ad\u03c2, \u03cc\u03bc\u03c9\u03c2, \u03b7 \u03b1\u03c5\u03c4\u03bf\u03c0\u03b5\u03c0\u03bf\u03af\u03b8\u03b7\u03c3\u03ae \u03c4\u03bf\u03c5 \u03c4\u03bf\u03bd \u03bf\u03b4\u03b7\u03b3\u03bf\u03cd\u03c3\u03b5 \u03bd\u03b1 \u03b4\u03af\u03bd\u03b5\u03b9 \u03c5\u03c0\u03b5\u03c1\u03b2\u03bf\u03bb\u03b9\u03ba\u03ae \u03b1\u03be\u03af\u03b1 \u03c3\u03c4\u03b7 \u03b4\u03b9\u03b1\u03af\u03c3\u03b8\u03b7\u03c3\u03ae \u03c4\u03bf\u03c5 (\u03c4\u03bf\u03c5\u03bb\u03ac\u03c7\u03b9\u03c3\u03c4\u03bf\u03bd, \u03c3\u03b5 \u03c0\u03b5\u03c1\u03b9\u03c0\u03c4\u03ce\u03c3\u03b5\u03b9\u03c2 \u03cc\u03c0\u03bf\u03c5 \u03c4\u03bf \u03c0\u03c1\u03cc\u03b2\u03bb\u03b7\u03bc\u03b1 \u03b4\u03b5\u03bd \u03b1\u03c0\u03b1\u03b9\u03c4\u03bf\u03cd\u03c3\u03b5 \u03c3\u03bf\u03b2\u03b1\u03c1\u03ae \u03c3\u03ba\u03ad\u03c8\u03b7).<br \/>\n\u0391\u03c0\u03cc \u03cc\u03bb\u03b1 \u03c4\u03b1 \u03b1\u03c1\u03b9\u03b8\u03bc\u03b7\u03c4\u03b9\u03ba\u03ac \u03c0\u03b1\u03b9\u03c7\u03bd\u03af\u03b4\u03b9\u03b1 \u03b3\u03b9\u03b1 \u03ad\u03bd\u03b1\u03bd \u03c0\u03b1\u03af\u03ba\u03c4\u03b7 \u03b8\u03c5\u03bc\u03ac\u03bc\u03b1\u03b9 \u03ba\u03b1\u03bb\u03cd\u03c4\u03b5\u03c1\u03b1 \u03c4\u03bf \u03c0\u03b1\u03b9\u03c7\u03bd\u03af\u03b4\u03b9 \u03bc\u03b5 \u03c4\u03b9\u03c2 \u03c0\u03b9\u03bd\u03b1\u03ba\u03af\u03b4\u03b5\u03c2 \u03ba\u03c5\u03ba\u03bb\u03bf\u03c6\u03bf\u03c1\u03af\u03b1\u03c2. \u0397 \u03b1\u03b9\u03c4\u03af\u03b1 \u03b5\u03af\u03bd\u03b1\u03b9, \u03c7\u03c9\u03c1\u03af\u03c2 \u03b1\u03bc\u03c6\u03b9\u03b2\u03bf\u03bb\u03af\u03b1, \u03c4\u03bf \u03b3\u03b5\u03b3\u03bf\u03bd\u03cc\u03c2 \u03cc\u03c4\u03b9 \u03c4\u03bf \u03b5\u03af\u03c7\u03b1 \u03bc\u03ac\u03b8\u03b5\u03b9 \u03b1\u03c0\u03cc \u03c4\u03bf\u03bd \u03af\u03b4\u03b9\u03bf \u03c4\u03bf\u03bd Landau.<br \/>\n\u03a3\u03ba\u03bf\u03c0\u03cc\u03c2 \u03c4\u03bf\u03c5 \u03c0\u03b1\u03b9\u03c7\u03bd\u03b9\u03b4\u03b9\u03bf\u03cd \u03b5\u03af\u03bd\u03b1\u03b9 \u03bd\u03b1 \u03ba\u03b1\u03c4\u03b1\u03c3\u03ba\u03b5\u03c5\u03ac\u03c3\u03bf\u03c5\u03bc\u03b5 \u03bc\u03b9\u03b1 \u03b9\u03c3\u03cc\u03c4\u03b7\u03c4\u03b1 \u03b1\u03c0\u03cc \u03c4\u03bf\u03c5\u03c2 \u03c4\u03ad\u03c3\u03c3\u03b5\u03c1\u03b9\u03c2 \u03b1\u03c1\u03b9\u03b8\u03bc\u03bf\u03cd\u03c2 \u03bc\u03b9\u03b1\u03c2 \u03c0\u03b9\u03bd\u03b1\u03ba\u03af\u03b4\u03b1\u03c2 \u03ba\u03c5\u03ba\u03bb\u03bf\u03c6\u03bf\u03c1\u03af\u03b1\u03c2. \u03b1\u03c5\u03c4\u03bf\u03ba\u03b9\u03bd\u03ae\u03c4\u03bf\u03c5. (\u039f\u03b9 \u03c4\u03cc\u03c4\u03b5 \u03c3\u03bf\u03b2\u03b9\u03b5\u03c4\u03b9\u03ba\u03ad\u03c2 \u03c0\u03b9\u03bd\u03b1\u03ba\u03af\u03b4\u03b5\u03c2 \u03b5\u03af\u03c7\u03b1\u03bd \u03c4\u03b7\u03bd \u03bc\u03bf\u03c1\u03c6\u03ae \u00ab\u0391\u0392\u0393\u0394\u00bb \u2013 \u03b3\u03b9\u03b1 \u03c0\u03b1\u03c1\u03ac\u03b4\u03b5\u03b9\u03b3\u03bc\u03b1 \u00ab1234\u00bb).<br \/>\n\u0399\u03b4\u03bf\u03cd \u03bf\u03b9 \u03ba\u03b1\u03bd\u03cc\u03bd\u03b5\u03c2:<br \/>\n\u039c\u03c0\u03bf\u03c1\u03b5\u03af\u03c4\u03b5 \u03bd\u03b1 \u03c7\u03c1\u03b7\u03c3\u03b9\u03bc\u03bf\u03c0\u03bf\u03b9\u03ae\u03c3\u03b5\u03c4\u03b5 \u03bc\u03cc\u03bd\u03bf \u03c4\u03b9\u03c2 \u03b1\u03c1\u03b9\u03b8\u03bc\u03b7\u03c4\u03b9\u03ba\u03ad\u03c2, \u03b1\u03bb\u03b3\u03b5\u03b2\u03c1\u03b9\u03ba\u03ad\u03c2 \u03ba\u03b1\u03b9 \u03c4\u03c1\u03b9\u03b3\u03c9\u03bd\u03bf\u03bc\u03b5\u03c4\u03c1\u03b9\u03ba\u03ad\u03c2 \u03c0\u03c1\u03ac\u03be\u03b5\u03b9\u03c2 \u03c0\u03bf\u03c5 \u03bc\u03ac\u03b8\u03b1\u03c4\u03b5 \u03c3\u03c4\u03bf \u03c3\u03c7\u03bf\u03bb\u03b5\u03af\u03bf. \u0394\u03b5\u03bd \u03b5\u03c0\u03b9\u03c4\u03c1\u03ad\u03c0\u03b5\u03c4\u03b1\u03b9 \u03bd\u03b1 \u03b1\u03bb\u03bb\u03ac\u03be\u03b5\u03c4\u03b5 \u03c4\u03b7 \u03b8\u03ad\u03c3\u03b7 \u03c4\u03c9\u03bd \u03c8\u03b7\u03c6\u03af\u03c9\u03bd, \u03b5\u03bd\u03ce \u03c0\u03c1\u03ad\u03c0\u03b5\u03b9 \u03bd\u03b1 \u03b2\u03c1\u03b5\u03af\u03c4\u03b5 \u03c4\u03b7 \u03bb\u03cd\u03c3\u03b7 \u03bc\u03b5 \u03c4\u03bf \u00ab\u03bc\u03c5\u03b1\u03bb\u03cc\u00bb.<br \/>\n\u039c\u03b5 \u03ac\u03bb\u03bb\u03b1 \u03bb\u03cc\u03b3\u03b9\u03b1, \u03c0\u03c1\u03ad\u03c0\u03b5\u03b9 \u03c0\u03c1\u03bf\u03ba\u03cd\u03c8\u03b5\u03b9 \u03b9\u03c3\u03cc\u03c4\u03b7\u03c4\u03b1 \u03bc\u03b5\u03c4\u03b1\u03be\u03cd \u03c4\u03c9\u03bd \u03b1\u03c1\u03b9\u03b8\u03bc\u03ce\u03bd, \u03b5\u03b9\u03c3\u03ac\u03b3\u03bf\u03bd\u03c4\u03b1\u03c2 \u03c4\u03b1 \u03c3\u03cd\u03bc\u03b2\u03bf\u03bb\u03b1 \u03c0\u03bf\u03c5 \u03b5\u03af\u03bd\u03b1\u03b9 \u03b3\u03bd\u03c9\u03c3\u03c4\u03ac \u03c3\u03b5 \u03bf\u03c0\u03bf\u03b9\u03bf\u03b4\u03ae\u03c0\u03bf\u03c4\u03b5 \u03bc\u03b1\u03b8\u03b7\u03c4\u03ae \u03bb\u03c5\u03ba\u03b5\u03af\u03bf\u03c5 (+, -, x, \u03c4\u03b5\u03c4\u03c1\u03b1\u03b3\u03c9\u03bd\u03b9\u03ba\u03ae \u03c1\u03af\u03b6\u03b1, log, \u03c3\u03c5\u03bd, \u03b7\u03bc \u03ba.\u03bf.\u03ba.). \u039c\u03b5\u03c1\u03b9\u03ba\u03bf\u03af \u03b1\u03c1\u03b9\u03b8\u03bc\u03bf\u03af \u03b5\u03af\u03bd\u03b1\u03b9 \u03b5\u03cd\u03ba\u03bf\u03bb\u03bf\u03b9 \u2013 \u03b3\u03b9\u03b1 \u03c0\u03b1\u03c1\u03ac\u03b4\u03b5\u03b9\u03b3\u03bc\u03b1,<br \/>\n7531 (7 \u2013 5 = 3 \u2013 1) \u03ae<br \/>\n3853 (3\u03b7 \u03c1\u03af\u03b6\u03b1 \u03c4\u03bf\u03c5 8 \u03bc\u03b5\u03af\u03bf\u03bd 5 = -3)<br \/>\n\u03a5\u03c0\u03ac\u03c1\u03c7\u03bf\u03c5\u03bd \u03cc\u03bc\u03c9\u03c2 \u03ba\u03b1\u03b9 \u03b4\u03c5\u03c3\u03ba\u03bf\u03bb\u03cc\u03c4\u03b5\u03c1\u03bf\u03b9 \u03b1\u03c1\u03b9\u03b8\u03bc\u03bf\u03af \u2013 \u03b3\u03b9\u03b1 \u03c0\u03b1\u03c1\u03ac\u03b4\u03b5\u03b9\u03b3\u03bc\u03b1 \u03bf 7533 \u03b3\u03b9\u03b1 \u03c4\u03bf\u03bd \u03bf\u03c0\u03bf\u03af\u03bf \u03b9\u03c3\u03c7\u03cd\u03b5\u03b9<br \/>\n7533 (7 \u2013 5 = 3! \/ 3) \u03cc\u03c0\u03bf\u03c5 \u03c4\u03bf \u03b8\u03b1\u03c5\u03bc\u03b1\u03c3\u03c4\u03b9\u03ba\u03cc (!) \u03b5\u03af\u03bd\u03b1\u03b9 \u03c4\u03bf \u03c3\u03cd\u03bc\u03b2\u03bf\u03bb\u03bf \u03c4\u03bf\u03c5 \u03c0\u03b1\u03c1\u03b1\u03b3\u03bf\u03bd\u03c4\u03b9\u03ba\u03bf\u03cd.<br \/>\n\u039f\u03b9 \u03c6\u03b1\u03bd\u03b1\u03c4\u03b9\u03ba\u03bf\u03af \u03c0\u03b1\u03af\u03ba\u03c4\u03b5\u03c2 \u03c4\u03bf\u03c5 \u03b5\u03bd \u03bb\u03cc\u03b3\u03c9 \u03c0\u03b1\u03b9\u03c7\u03bd\u03b9\u03b4\u03b9\u03bf\u03cd \u03c3\u03c5\u03c7\u03bd\u03ac \u03b4\u03b9\u03b1\u03c6\u03c9\u03bd\u03bf\u03cd\u03c3\u03b1\u03bd \u03c3\u03c7\u03b5\u03c4\u03b9\u03ba\u03ac \u03bc\u03b5 \u03c4\u03bf \u03c0\u03bf\u03b9\u03b5\u03c2 \u03b5\u03af\u03bd\u03b1\u03b9 \u03bf\u03b9 \u03b5\u03c0\u03b9\u03c4\u03c1\u03b5\u03c0\u03c4\u03ad\u03c2 \u03c0\u03c1\u03ac\u03be\u03b5\u03b9\u03c2 \u03ba\u03b1\u03b9 \u03c0\u03bf\u03b9\u03b5\u03c2 \u03bf\u03b9 \u03b1\u03c0\u03b1\u03b3\u03bf\u03c1\u03b5\u03c5\u03bc\u03ad\u03bd\u03b5\u03c2: \u03c4\u03bf \u03c0\u03c1\u03cc\u03b2\u03bb\u03b7\u03bc\u03b1 \u03ad\u03b3\u03ba\u03b5\u03b9\u03c4\u03bf \u03c3\u03c4\u03bf \u03cc\u03c4\u03b9 \u03b4\u03b5\u03bd \u03b3\u03bd\u03ce\u03c1\u03b9\u03b6\u03b1\u03bd \u03b1\u03c0\u03b1\u03ba\u03c1\u03b9\u03b2\u03ce\u03c2 \u03c4\u03b1 \u03cc\u03c1\u03b9\u03b1 \u03c4\u03b7\u03c2 \u03c3\u03c7\u03bf\u03bb\u03b9\u03ba\u03ae\u03c2 \u03cd\u03bb\u03b7\u03c2. \u0395\u03b9\u03b4\u03b9\u03ba\u03ac \u03b4\u03b9\u03b1\u03c6\u03c9\u03bd\u03bf\u03cd\u03c3\u03b1\u03bd \u03b3\u03b9\u03b1 \u03c4\u03b7\u03bd \u03bf\u03c1\u03b8\u03cc\u03c4\u03b7\u03c4\u03b1 \u03c4\u03b7\u03c2 \u03c7\u03c1\u03ae\u03c3\u03b7\u03c2 \u03c4\u03bf\u03c5 \u03c0\u03b1\u03c1\u03b1\u03b3\u03bf\u03bd\u03c4\u03b9\u03ba\u03bf\u03cd (!) (\u03c4\u03bf \u03bf\u03c0\u03bf\u03af\u03bf \u03ae\u03c4\u03b1\u03bd \u03b2\u03bf\u03bb\u03b9\u03ba\u03cc \u03b3\u03b9\u03b1 \u03c3\u03c5\u03b3\u03ba\u03b5\u03ba\u03c1\u03b9\u03bc\u03ad\u03bd\u03bf\u03c5\u03c2 \u03b1\u03c1\u03b9\u03b8\u03bc\u03bf\u03cd\u03c2).<br \/>\n\u03a4\u03b7\u03bd \u03b5\u03c0\u03bf\u03c7\u03ae \u03c0\u03bf\u03c5 \u03bc\u03bf\u03c5 \u03c0\u03b5\u03c1\u03b9\u03ad\u03b3\u03c1\u03b1\u03c8\u03b5 \u03c4\u03bf \u03c0\u03b1\u03b9\u03c7\u03bd\u03af\u03b4\u03b9, \u03bf Landau \u03ae\u03c4\u03b1\u03bd \u03b8\u03b1\u03c5\u03bc\u03ac\u03c3\u03b9\u03bf\u03c2 \u03c0\u03b1\u03af\u03ba\u03c4\u03b7\u03c2. \u039c\u03c0\u03bf\u03c1\u03bf\u03cd\u03c3\u03b5 \u03bd\u03b1 \u03b2\u03c1\u03b5\u03af \u03c4\u03b7\u03bd \u03b1\u03c0\u03ac\u03bd\u03c4\u03b7\u03c3\u03b7 \u03c3\u03c7\u03b5\u03b4\u03cc\u03bd \u03bc\u03cc\u03bb\u03b9\u03c2 \u03b1\u03bd\u03c4\u03af\u03ba\u03c1\u03b9\u03b6\u03b5 \u03c4\u03b7\u03bd \u03c0\u03b9\u03bd\u03b1\u03ba\u03af\u03b4\u03b1. \u038c\u03bc\u03c9\u03c2, \u03c5\u03c0\u03ae\u03c1\u03c7\u03b1\u03bd \u03c0\u03c1\u03bf\u03b2\u03bb\u03ae\u03bc\u03b1\u03c4\u03b1 \u03ac\u03bb\u03c5\u03c4\u03b1 \u2013 \u03b3\u03b9\u03b1 \u03c0\u03b1\u03c1\u03ac\u03b4\u03b5\u03b9\u03b3\u03bc\u03b1 \u03b7 \u03c0\u03b9\u03bd\u03b1\u03ba\u03af\u03b4\u03b1 7565.<br \/>\n\u03a6\u03c5\u03c3\u03b9\u03ba\u03ac \u03b8\u03b1 \u03bc\u03c0\u03bf\u03c1\u03bf\u03cd\u03c3\u03b1\u03bc\u03b5 \u03bd\u03b1 \u03c7\u03c1\u03b7\u03c3\u03b9\u03bc\u03bf\u03c0\u03bf\u03b9\u03ae\u03c3\u03bf\u03c5\u03bc\u03b5 \u03c4\u03b7 \u03c3\u03c5\u03bd\u03ac\u03c1\u03c4\u03b7\u03c3\u03b7 [\u03c7], \u03c0\u03bf\u03c5 \u03b4\u03af\u03bd\u03b5\u03b9 \u03c4\u03bf \u03b1\u03ba\u03ad\u03c1\u03b1\u03b9\u03bf \u03bc\u03ad\u03c1\u03bf\u03c2 \u03c4\u03bf\u03c5 \u03c7:<br \/>\n[7 \/ 5] = [6 \/ 5],<br \/>\n\u03b1\u03c5\u03c4\u03ae \u03cc\u03bc\u03c9\u03c2 \u03b7 \u03c3\u03c5\u03bd\u03ac\u03c1\u03c4\u03b7\u03c3\u03b7 \u03b4\u03b5\u03bd \u03b4\u03b9\u03b4\u03ac\u03c3\u03ba\u03b5\u03c4\u03b1\u03b9 \u03c3\u03c4\u03bf \u03c3\u03c7\u03bf\u03bb\u03b5\u03af\u03bf. \u0395\u03ba\u03c4\u03cc\u03c2 \u03b1\u03c5\u03c4\u03bf\u03cd, \u03b1\u03bd \u03b5\u03c0\u03b9\u03c4\u03c1\u03b5\u03c0\u03cc\u03c4\u03b1\u03bd \u03b7 \u03c3\u03c5\u03bd\u03ac\u03c1\u03c4\u03b7\u03c3\u03b7 [\u03c7], \u03c4\u03bf \u03c0\u03b1\u03b9\u03c7\u03bd\u03af\u03b4\u03b9 \u03b8\u03b1 \u03ba\u03b1\u03c4\u03ad\u03bb\u03b7\u03b3\u03b5 \u03b5\u03be\u03b1\u03b9\u03c1\u03b5\u03c4\u03b9\u03ba\u03ac \u03b2\u03b1\u03c1\u03b5\u03c4\u03cc.<br \/>\n\u0391\u03bd\u03ad\u03ba\u03c5\u03c8\u03b5 \u03c4\u03bf \u03b6\u03ae\u03c4\u03b7\u03bc\u03b1 \u03c4\u03bf\u03c5 \u00ab\u03b8\u03b5\u03c9\u03c1\u03ae\u03bc\u03b1\u03c4\u03bf\u03c2 \u03cd\u03c0\u03b1\u03c1\u03be\u03b7\u03c2\u00bb. \u0388\u03b8\u03b5\u03c3\u03b1 \u03b5\u03c1\u03ce\u03c4\u03b7\u03bc\u03b1 \u03c3\u03c4\u03bf\u03bd Landau: \u00ab\u0395\u03af\u03bd\u03b1\u03b9 \u03c0\u03ac\u03bd\u03c4\u03bf\u03c4\u03b5 \u03b4\u03c5\u03bd\u03b1\u03c4\u03cc\u03bd \u03bd\u03b1 \u03ba\u03b1\u03c4\u03b1\u03c3\u03ba\u03b5\u03c5\u03ac\u03c3\u03bf\u03c5\u03bc\u03b5 \u03bc\u03b9\u03b1 \u03b9\u03c3\u03cc\u03c4\u03b7\u03c4\u03b1 \u03b1\u03c0\u03cc \u03c4\u03bf\u03c5\u03c2 \u03b1\u03c1\u03b9\u03b8\u03bc\u03bf\u03cd\u03c2 \u03bc\u03b9\u03b1 \u03c0\u03b9\u03bd\u03b1\u03ba\u03af\u03b4\u03b1\u03c2 \u03ba\u03c5\u03ba\u03bb\u03bf\u03c6\u03bf\u03c1\u03af\u03b1\u03c2;\u00bb<br \/>\n\u00ab\u038c\u03c7\u03b9, \u03b2\u03ad\u03b2\u03b1\u03b9\u03b1\u00bb, \u03b1\u03c0\u03ac\u03bd\u03c4\u03b7\u03c3\u03b5 \u03bc\u03b5 \u03ad\u03bc\u03c6\u03b1\u03c3\u03b7 \u03bf Landau.<br \/>\nE\u03bd\u03c4\u03c5\u03c0\u03c9\u03c3\u03b9\u03ac\u03c3\u03c4\u03b7\u03ba\u03b1. \u00ab\u0395\u03c0\u03bf\u03bc\u03ad\u03bd\u03c9\u03c2 \u03b8\u03b1 \u03ad\u03c7\u03b5\u03c4\u03b5 \u03b1\u03c0\u03bf\u03b4\u03b5\u03af\u03be\u03b5\u03b9 \u03c4\u03bf \u03b8\u03b5\u03ce\u03c1\u03b7\u03bc\u03b1 \u03bc\u03b7 \u03cd\u03c0\u03b1\u03c1\u03be\u03b7\u03c2\u2026.\u00bb.<br \/>\n\u00ab\u038c\u03c7\u03b9\u00bb, \u03bc\u03bf\u03c5 \u03b1\u03c0\u03ac\u03bd\u03c4\u03b7\u03c3\u03b5, \u00ab\u03b1\u03bb\u03bb\u03ac \u03b4\u03b5\u03bd \u03ad\u03c7\u03c9 \u03ba\u03b1\u03c4\u03b1\u03c6\u03ad\u03c1\u03b5\u03b9 \u03bd\u03b1 \u03bb\u03cd\u03c3\u03c9 \u03cc\u03bb\u03b5\u03c2 \u03c4\u03b9\u03c2 \u03c0\u03b9\u03bd\u03b1\u03ba\u03af\u03b4\u03b5\u03c2 \u03ba\u03c5\u03ba\u03bb\u03bf\u03c6\u03bf\u03c1\u03af\u03b1\u03c2\u00bb!<br \/>\n\u0388\u03c7\u03bf\u03bd\u03c4\u03b1\u03c2 \u03bb\u03bf\u03b9\u03c0\u03cc\u03bd \u03c0\u03c1\u03bf\u03c3\u03b2\u03bb\u03b7\u03b8\u03b5\u03af \u03b1\u03c0\u03cc \u03c4\u03b7 \u03bc\u03b1\u03bd\u03af\u03b1 \u03c4\u03bf\u03c5 \u03c0\u03b1\u03b9\u03c7\u03bd\u03b9\u03b4\u03b9\u03bf\u03cd \u03bc\u03b5 \u03c4\u03b9\u03c2 \u03c0\u03b9\u03bd\u03b1\u03ba\u03af\u03b4\u03b5\u03c2, \u03bc\u03b5\u03c4\u03ad\u03b4\u03c9\u03c3\u03b1 \u03c4\u03b7\u03bd \u03b1\u03c3\u03b8\u03ad\u03bd\u03b5\u03b9\u03b1 \u03c3\u03b5 \u03cc\u03bb\u03bf\u03c5\u03c2 \u03c4\u03bf\u03c5 \u03bd\u03b5\u03b1\u03c1\u03bf\u03cd\u03c2 \u03bc\u03b1\u03b8\u03b7\u03bc\u03b1\u03c4\u03b9\u03ba\u03bf\u03cd\u03c2 \u03c0\u03bf\u03c5 \u03b3\u03bd\u03ce\u03c1\u03b9\u03b6\u03b1. \u0388\u03bd\u03b1\u03c2 \u03b1\u03c0\u03cc \u03b1\u03c5\u03c4\u03bf\u03cd\u03c2, \u03bf \u03a5. Gangel, \u03c0\u03ae\u03c1\u03b5 \u03c4\u03bf \u03c0\u03b1\u03b9\u03c7\u03bd\u03af\u03b4\u03b9 \u03c0\u03bf\u03bb\u03cd \u03c3\u03c4\u03b1 \u03c3\u03bf\u03b2\u03b1\u03c1\u03ac \u03ba\u03b1\u03b9 \u03b1\u03c0\u03ad\u03b4\u03b5\u03b9\u03be\u03b5 \u03c4\u03bf \u03b8\u03b5\u03ce\u03c1\u03b7\u03bc\u03b1 \u03cd\u03c0\u03b1\u03c1\u03be\u03b7\u03c2! \u0388\u03b4\u03b5\u03b9\u03be\u03b5 \u03cc\u03c4\u03b9 \u03bc\u03c0\u03bf\u03c1\u03bf\u03cd\u03bc\u03b5 \u03bd\u03b1 \u03b5\u03be\u03b9\u03c3\u03ce\u03bd\u03bf\u03c5\u03bc\u03b5 \u03bf\u03c0\u03bf\u03b9\u03bf\u03b4\u03ae\u03c0\u03bf\u03c4\u03b5 \u03b6\u03b5\u03cd\u03b3\u03bf\u03c2 \u03b1\u03ba\u03b5\u03c1\u03b1\u03af\u03c9\u03bd \u03bc\u03b5 \u03c4\u03b7 \u03b2\u03bf\u03ae\u03b8\u03b5\u03b9\u03b1 \u03c3\u03c5\u03bd\u03b1\u03c1\u03c4\u03ae\u03c3\u03b5\u03c9\u03bd \u03c0\u03bf\u03c5 \u03b4\u03b9\u03b4\u03ac\u03c3\u03ba\u03bf\u03bd\u03c4\u03b1\u03b9 \u03c3\u03c4\u03bf \u03bb\u03cd\u03ba\u03b5\u03b9\u03bf, \u03b4\u03b9\u03cc\u03c4\u03b9 \u03c5\u03c0\u03ac\u03c1\u03c7\u03b5\u03b9 \u03ad\u03bd\u03b1\u03c2 \u03c4\u03cd\u03c0\u03bf\u03c2 \u03b1\u03bd\u03b1\u03b3\u03c9\u03b3\u03ae\u03c2 \u03c4\u03bf\u03c5 \u039d+1 \u03c3\u03c4\u03bf \u039d.<br \/>\n\u0397 \u03b1\u03c0\u03cc\u03b4\u03b5\u03b9\u03be\u03b7 \u03c4\u03bf\u03c5 \u03b5\u03bd \u03bb\u03cc\u03b3\u03c9 \u03b1\u03bd\u03b1\u03b3\u03c9\u03b3\u03b9\u03ba\u03bf\u03cd \u03c4\u03cd\u03c0\u03bf\u03c5 \u03b2\u03b1\u03c3\u03af\u03b6\u03b5\u03c4\u03b1\u03b9 \u03c3\u03c4\u03b7\u03bd \u03c0\u03b1\u03c1\u03b1\u03c4\u03ae\u03c1\u03b7\u03c3\u03b7&nbsp;<\/p>\n<div>\u03c4\u03b5\u03bc<sup>2<\/sup>x = 1 + \u03b5\u03c6<sup>2<\/sup>x<\/div>\n<p>\u03ba\u03b1\u03b9 \u03c3\u03c4\u03b7\u03bd \u03b1\u03c0\u03bb\u03ae \u03c7\u03c1\u03ae\u03c3\u03b7 \u03c4\u03c9\u03bd \u03b1\u03bd\u03c4\u03af\u03c3\u03c4\u03c1\u03bf\u03c6\u03c9\u03bd \u03c4\u03c1\u03b9\u03b3\u03c9\u03bd\u03bf\u03bc\u03b5\u03c4\u03c1\u03b9\u03ba\u03ce\u03bd \u03c3\u03c5\u03bd\u03b1\u03c1\u03c4\u03ae\u03c3\u03b5\u03c9\u03bd.<br \/>\n\u03a0\u03c1\u03ac\u03b3\u03bc\u03b1\u03c4\u03b9, \u03b5\u03cd\u03ba\u03bf\u03bb\u03b1 \u03b2\u03bb\u03ad\u03c0\u03b5\u03b9 \u03ba\u03b1\u03bd\u03b5\u03af\u03c2 \u03cc\u03c4\u03b9<\/p>\n<div>(\u039d+1)<sup>1\/2<\/sup>\u00a0= \u03c4\u03b5\u03bc\u03c4\u03bf\u03be\u03b5\u03c6\u039d<sup>1\/2<\/sup><\/div>\n<p>\u0394\u03c5\u03c3\u03c4\u03c5\u03c7\u03ce\u03c2 \u03bc\u03b5\u03c4\u03ac \u03c4\u03b7\u03bd \u03b1\u03c0\u03cc\u03b4\u03b5\u03b9\u03be\u03b7 \u03c4\u03bf\u03c5 \u03b8\u03b5\u03c9\u03c1\u03ae\u03bc\u03b1\u03c4\u03bf\u03c2 \u03c4\u03bf \u03c0\u03b1\u03b9\u03c7\u03bd\u03af\u03b4\u03b9 \u03ad\u03c7\u03b1\u03c3\u03b5 \u03c4\u03b7 \u03b3\u03bf\u03b7\u03c4\u03b5\u03af\u03b1 \u03c4\u03bf\u03c5, \u03b4\u03b9\u03cc\u03c4\u03b9 \u03c0\u03bb\u03ad\u03bf\u03bd \u03ae\u03c4\u03b1\u03bd \u03b4\u03c5\u03bd\u03b1\u03c4\u03ae \u03b7 \u03b5\u03be\u03af\u03c3\u03c9\u03c3\u03b7 \u03bf\u03c0\u03bf\u03b9\u03c9\u03bd\u03b4\u03ae\u03c0\u03bf\u03c4\u03b5 \u03b1\u03c1\u03b9\u03b8\u03bc\u03ce\u03bd \u03bc\u03b5 \u03c0\u03bf\u03bb\u03bb\u03b1\u03c0\u03bb\u03ae \u03b5\u03c6\u03b1\u03c1\u03bc\u03bf\u03b3\u03ae \u03c4\u03bf\u03c5 \u03b1\u03bd\u03b1\u03b3\u03c9\u03b3\u03b9\u03ba\u03bf\u03cd \u03c4\u03cd\u03c0\u03bf\u03c5.<br \/>\n\u0388\u03b4\u03b5\u03b9\u03be\u03b1 \u03c4\u03b7\u03bd \u03b1\u03c0\u03cc\u03b4\u03b5\u03b9\u03be\u03b7 \u03c3\u03c4\u03bf\u03bd Landau. \u03a4\u03bf\u03c5 \u03ac\u03c1\u03b5\u03c3\u03b5 \u03ba\u03b1\u03b9 \u03c3\u03c5\u03b6\u03b7\u03c4\u03ae\u03c3\u03b1\u03bc\u03b5 (\u03b5\u03bd \u03bc\u03ad\u03c1\u03b5\u03b9 \u03c7\u03b1\u03c1\u03b9\u03c4\u03bf\u03bb\u03bf\u03b3\u03ce\u03bd\u03c4\u03b1\u03c2) \u03ba\u03b1\u03c4\u03ac \u03c0\u03cc\u03c3\u03bf \u03ac\u03be\u03b9\u03b6\u03b5 \u03bd\u03b1 \u03b4\u03b7\u03bc\u03bf\u03c3\u03b9\u03b5\u03c5\u03c4\u03b5\u03af \u03c3\u03b5 \u03ba\u03ac\u03c0\u03bf\u03b9\u03bf \u03c3\u03c7\u03b5\u03c4\u03b9\u03ba\u03cc \u03b5\u03c0\u03b9\u03c3\u03c4\u03b7\u03bc\u03bf\u03bd\u03b9\u03ba\u03cc \u03c0\u03b5\u03c1\u03b9\u03bf\u03b4\u03b9\u03ba\u03cc.<br \/>\n\u00ab\u038a\u03c3\u03c9\u03c2 \u03b4\u03b5\u03bd \u03b8\u03b1 \u03ad\u03c0\u03c1\u03b5\u03c0\u03b5 \u03bd\u03b1 \u03c4\u03bf \u03b4\u03b9\u03b1\u03ba\u03b9\u03bd\u03b4\u03c5\u03bd\u03b5\u03cd\u03c3\u03bf\u03c5\u03bc\u03b5\u00bb, \u03bc\u03bf\u03c5 \u03b5\u03af\u03c0\u03b5. \u00ab\u039f\u03b9 \u03bc\u03b1\u03b8\u03b7\u03bc\u03b1\u03c4\u03b9\u03ba\u03bf\u03af \u03b8\u03b1 \u03c0\u03c1\u03bf\u03c3\u03b2\u03bb\u03b7\u03b8\u03bf\u03cd\u03bd. \u0395\u03af\u03bd\u03b1\u03b9 \u03ae\u03b4\u03b7 \u03ad\u03be\u03b1\u03bb\u03bb\u03bf\u03b9 \u03bc\u03b1\u03b6\u03af \u03bc\u03bf\u03c5!\u00bb<br \/>\n\u039f\u03bb\u03bf\u03ba\u03bb\u03b7\u03c1\u03ce\u03bd\u03bf\u03bd\u03c4\u03b1\u03c2 \u03b8\u03b1 \u03ae\u03b8\u03b5\u03bb\u03b1 \u03bd\u03b1 \u03b5\u03c0\u03b9\u03c3\u03b7\u03bc\u03ac\u03bd\u03c9 \u03b3\u03b9\u03b1 \u03bc\u03b9\u03b1 \u03b1\u03ba\u03cc\u03bc\u03b7 \u03c6\u03bf\u03c1\u03ac \u03cc\u03c4\u03b9 \u03bf Landau \u03c0\u03af\u03c3\u03c4\u03b5\u03c5\u03b5 \u03c3\u03c4\u03b9\u03c2 \u03bc\u03b1\u03b8\u03b7\u03bc\u03b1\u03c4\u03b9\u03ba\u03ad\u03c2 \u03c4\u03bf\u03c5 \u03b9\u03ba\u03b1\u03bd\u03cc\u03c4\u03b7\u03c4\u03b5\u03c2, \u03ba\u03b1\u03b9 \u03b7 \u03b1\u03c5\u03c4\u03bf\u03c0\u03b5\u03c0\u03bf\u03af\u03b8\u03b7\u03c3\u03ae \u03c4\u03bf\u03c5 \u03c4\u03bf\u03bd \u03b2\u03bf\u03ae\u03b8\u03b7\u03c3\u03b5 \u03bd\u03b1 \u03bb\u03cd\u03c3\u03b5\u03b9 \u03b4\u03cd\u03c3\u03ba\u03bf\u03bb\u03b1 \u03ba\u03b1\u03b9 \u03c3\u03b7\u03bc\u03b1\u03bd\u03c4\u03b9\u03ba\u03ac \u03c0\u03c1\u03bf\u03b2\u03bb\u03ae\u03bc\u03b1\u03c4\u03b1 \u2013 \u03c0\u03bf\u03bb\u03cd \u03b4\u03c5\u03c3\u03ba\u03bf\u03bb\u03cc\u03c4\u03b5\u03c1\u03b1 \u03b1\u03c0\u03cc \u03b1\u03c5\u03c4\u03ac \u03c0\u03bf\u03c5 \u03b5\u03bc\u03c6\u03b1\u03bd\u03af\u03b6\u03bf\u03bd\u03c4\u03b1\u03b9 \u03c3\u03c4\u03bf \u03c0\u03b1\u03b9\u03c7\u03bd\u03af\u03b4\u03b9 \u03c4\u03c9\u03bd \u03c0\u03b9\u03bd\u03b1\u03ba\u03af\u03b4\u03c9\u03bd \u03ba\u03c5\u03ba\u03bb\u03bf\u03c6\u03bf\u03c1\u03af\u03b1\u03c2, \u03bc\u03c0\u03bf\u03c1\u03ce \u03bd\u03b1 \u03c3\u03b1\u03c2 \u03b4\u03b9\u03b1\u03b2\u03b5\u03b2\u03b1\u03b9\u03ce\u03c3\u03c9!<br \/>\n<em>\u039c.\u0399. Kaganov, \u03c0\u03b5\u03c1\u03b9\u03bf\u03b4\u03b9\u03ba\u03cc QUANTUM, \u0399\u03b1\u03bd\u03bf\u03c5\u03ac\u03c1\u03b9\u03bf\u03c2\/\u03a6\u03b5\u03b2\u03c1\u03bf\u03c5\u03ac\u03c1\u03b9\u03bf\u03c2 2000<\/em><\/p>\n<\/div>\n<p>\u03c0\u03b7\u03b3\u03ae:<a href=\"https:\/\/physicsgg.me\/2011\/06\/22\/o-landau-%CE%BA%CE%B1%CE%B9-%CE%BF%CE%B9-%CF%80%CE%B9%CE%BD%CE%B1%CE%BA%CE%AF%CE%B4%CE%B5%CF%82-%CE%BA%CF%85%CE%BA%CE%BB%CE%BF%CF%86%CE%BF%CF%81%CE%AF%CE%B1%CF%82-%CE%B1%CF%85%CF%84%CE%BF%CE%BA\/\"> https:\/\/physicsgg.me<\/a>\/<\/p>\n<p><!--more--><\/p>\n<p><strong><em>* \u0391\u03bd \u03ba\u03ac\u03c0\u03bf\u03b9\u03b1\u00a0 \u03b5\u03b9\u03ba\u03cc\u03bd\u03b1 \u03c5\u03c0\u03cc\u03ba\u03b5\u03b9\u03c4\u03b1\u03b9 \u03c3\u03b5 \u03c0\u03bd\u03b5\u03c5\u03bc\u03b1\u03c4\u03b9\u03ba\u03ac \u03b4\u03b9\u03ba\u03b1\u03b9\u03ce\u03bc\u03b1\u03c4\u03b1 \u03c0\u03b1\u03c1\u03b1\u03ba\u03b1\u03bb\u03bf\u03cd\u03bc\u03b5\u00a0<a href=\"https:\/\/omathimatikos.gr\/kbour@sch.gr\">\u03bd\u03b1 \u03bc\u03b1\u03c2 \u03b5\u03bd\u03b7\u03bc\u03b5\u03c1\u03ce\u03c3\u03b5\u03c4\u03b5<\/a>\u00a0\u03b3\u03b9\u03b1 \u03bd\u03b1 \u03c4\u03b7\u03bd \u03b1\u03bd\u03c4\u03b9\u03ba\u03b1\u03c4\u03b1\u03c3\u03c4\u03ae\u03c3\u03bf\u03c5\u03bc\u03b5.<\/em><\/strong><\/p>\n","protected":false},"excerpt":{"rendered":"","protected":false},"author":2,"featured_media":49328,"comment_status":"open","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"jetpack_post_was_ever_published":false,"_jetpack_newsletter_access":"","_jetpack_dont_email_post_to_subs":false,"_jetpack_newsletter_tier_id":0,"_jetpack_memberships_contains_paywalled_content":false,"footnotes":"","_jetpack_memberships_contains_paid_content":false,"jetpack_publicize_message":"","jetpack_publicize_feature_enabled":true,"jetpack_social_post_already_shared":true,"jetpack_social_options":{"image_generator_settings":{"template":"highway","enabled":false}}},"categories":[33],"tags":[],"jetpack_publicize_connections":[],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v22.5 - https:\/\/yoast.com\/wordpress\/plugins\/seo\/ -->\n<title>O Landau \u03ba\u03b1\u03b9 \u03bf\u03b9 \u03c0\u03b9\u03bd\u03b1\u03ba\u03af\u03b4\u03b5\u03c2 \u03ba\u03c5\u03ba\u03bb\u03bf\u03c6\u03bf\u03c1\u03af\u03b1\u03c2 \u03b1\u03c5\u03c4\u03bf\u03ba\u03b9\u03bd\u03ae\u03c4\u03c9\u03bd &#8211; \u039f \u039c\u0391\u0398\u0397\u039c\u0391\u03a4\u0399\u039a\u039f\u03a3<\/title>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/omathimatikos.gr\/?p=49327\" \/>\n<meta property=\"og:locale\" content=\"el_GR\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"O Landau \u03ba\u03b1\u03b9 \u03bf\u03b9 \u03c0\u03b9\u03bd\u03b1\u03ba\u03af\u03b4\u03b5\u03c2 \u03ba\u03c5\u03ba\u03bb\u03bf\u03c6\u03bf\u03c1\u03af\u03b1\u03c2 \u03b1\u03c5\u03c4\u03bf\u03ba\u03b9\u03bd\u03ae\u03c4\u03c9\u03bd &#8211; \u039f \u039c\u0391\u0398\u0397\u039c\u0391\u03a4\u0399\u039a\u039f\u03a3\" \/>\n<meta property=\"og:url\" content=\"https:\/\/omathimatikos.gr\/?p=49327\" \/>\n<meta property=\"og:site_name\" content=\"\u039f \u039c\u0391\u0398\u0397\u039c\u0391\u03a4\u0399\u039a\u039f\u03a3\" \/>\n<meta property=\"article:publisher\" content=\"https:\/\/www.facebook.com\/omathimatikos\/\" \/>\n<meta property=\"article:published_time\" content=\"2021-01-11T17:37:03+00:00\" \/>\n<meta property=\"article:modified_time\" content=\"2021-01-11T07:43:17+00:00\" \/>\n<meta property=\"og:image\" content=\"https:\/\/i0.wp.com\/omathimatikos.gr\/wp-content\/uploads\/2021\/01\/landau.jpg?fit=778%2C519&ssl=1\" \/>\n\t<meta property=\"og:image:width\" content=\"778\" \/>\n\t<meta property=\"og:image:height\" content=\"519\" \/>\n\t<meta property=\"og:image:type\" content=\"image\/jpeg\" \/>\n<meta name=\"author\" content=\"...\" \/>\n<meta name=\"twitter:card\" content=\"summary_large_image\" \/>\n<meta name=\"twitter:label1\" content=\"\u03a3\u03c5\u03bd\u03c4\u03ac\u03c7\u03b8\u03b7\u03ba\u03b5 \u03b1\u03c0\u03cc\" \/>\n\t<meta name=\"twitter:data1\" content=\"...\" \/>\n<script type=\"application\/ld+json\" class=\"yoast-schema-graph\">{\"@context\":\"https:\/\/schema.org\",\"@graph\":[{\"@type\":\"Article\",\"@id\":\"https:\/\/omathimatikos.gr\/?p=49327#article\",\"isPartOf\":{\"@id\":\"https:\/\/omathimatikos.gr\/?p=49327\"},\"author\":{\"name\":\"...\",\"@id\":\"https:\/\/omathimatikos.gr\/#\/schema\/person\/f06b5f15d628d878ee88431b07152cbe\"},\"headline\":\"O Landau \u03ba\u03b1\u03b9 \u03bf\u03b9 \u03c0\u03b9\u03bd\u03b1\u03ba\u03af\u03b4\u03b5\u03c2 \u03ba\u03c5\u03ba\u03bb\u03bf\u03c6\u03bf\u03c1\u03af\u03b1\u03c2 \u03b1\u03c5\u03c4\u03bf\u03ba\u03b9\u03bd\u03ae\u03c4\u03c9\u03bd\",\"datePublished\":\"2021-01-11T17:37:03+00:00\",\"dateModified\":\"2021-01-11T07:43:17+00:00\",\"mainEntityOfPage\":{\"@id\":\"https:\/\/omathimatikos.gr\/?p=49327\"},\"wordCount\":46,\"commentCount\":0,\"publisher\":{\"@id\":\"https:\/\/omathimatikos.gr\/#organization\"},\"image\":{\"@id\":\"https:\/\/omathimatikos.gr\/?p=49327#primaryimage\"},\"thumbnailUrl\":\"https:\/\/i0.wp.com\/omathimatikos.gr\/wp-content\/uploads\/2021\/01\/landau.jpg?fit=778%2C519&ssl=1\",\"articleSection\":[\"\u0395\u039d\u0394\u0399\u0391\u03a6\u0395\u03a1\u039f\u039d\u03a4\u0391\"],\"inLanguage\":\"el\",\"potentialAction\":[{\"@type\":\"CommentAction\",\"name\":\"Comment\",\"target\":[\"https:\/\/omathimatikos.gr\/?p=49327#respond\"]}]},{\"@type\":\"WebPage\",\"@id\":\"https:\/\/omathimatikos.gr\/?p=49327\",\"url\":\"https:\/\/omathimatikos.gr\/?p=49327\",\"name\":\"O Landau \u03ba\u03b1\u03b9 \u03bf\u03b9 \u03c0\u03b9\u03bd\u03b1\u03ba\u03af\u03b4\u03b5\u03c2 \u03ba\u03c5\u03ba\u03bb\u03bf\u03c6\u03bf\u03c1\u03af\u03b1\u03c2 \u03b1\u03c5\u03c4\u03bf\u03ba\u03b9\u03bd\u03ae\u03c4\u03c9\u03bd &#8211; \u039f \u039c\u0391\u0398\u0397\u039c\u0391\u03a4\u0399\u039a\u039f\u03a3\",\"isPartOf\":{\"@id\":\"https:\/\/omathimatikos.gr\/#website\"},\"primaryImageOfPage\":{\"@id\":\"https:\/\/omathimatikos.gr\/?p=49327#primaryimage\"},\"image\":{\"@id\":\"https:\/\/omathimatikos.gr\/?p=49327#primaryimage\"},\"thumbnailUrl\":\"https:\/\/i0.wp.com\/omathimatikos.gr\/wp-content\/uploads\/2021\/01\/landau.jpg?fit=778%2C519&ssl=1\",\"datePublished\":\"2021-01-11T17:37:03+00:00\",\"dateModified\":\"2021-01-11T07:43:17+00:00\",\"breadcrumb\":{\"@id\":\"https:\/\/omathimatikos.gr\/?p=49327#breadcrumb\"},\"inLanguage\":\"el\",\"potentialAction\":[{\"@type\":\"ReadAction\",\"target\":[\"https:\/\/omathimatikos.gr\/?p=49327\"]}]},{\"@type\":\"ImageObject\",\"inLanguage\":\"el\",\"@id\":\"https:\/\/omathimatikos.gr\/?p=49327#primaryimage\",\"url\":\"https:\/\/i0.wp.com\/omathimatikos.gr\/wp-content\/uploads\/2021\/01\/landau.jpg?fit=778%2C519&ssl=1\",\"contentUrl\":\"https:\/\/i0.wp.com\/omathimatikos.gr\/wp-content\/uploads\/2021\/01\/landau.jpg?fit=778%2C519&ssl=1\",\"width\":778,\"height\":519},{\"@type\":\"BreadcrumbList\",\"@id\":\"https:\/\/omathimatikos.gr\/?p=49327#breadcrumb\",\"itemListElement\":[{\"@type\":\"ListItem\",\"position\":1,\"name\":\"Home\",\"item\":\"https:\/\/omathimatikos.gr\/\"},{\"@type\":\"ListItem\",\"position\":2,\"name\":\"O Landau \u03ba\u03b1\u03b9 \u03bf\u03b9 \u03c0\u03b9\u03bd\u03b1\u03ba\u03af\u03b4\u03b5\u03c2 \u03ba\u03c5\u03ba\u03bb\u03bf\u03c6\u03bf\u03c1\u03af\u03b1\u03c2 \u03b1\u03c5\u03c4\u03bf\u03ba\u03b9\u03bd\u03ae\u03c4\u03c9\u03bd\"}]},{\"@type\":\"WebSite\",\"@id\":\"https:\/\/omathimatikos.gr\/#website\",\"url\":\"https:\/\/omathimatikos.gr\/\",\"name\":\"\u039f \u039c\u0391\u0398\u0397\u039c\u0391\u03a4\u0399\u039a\u039f\u03a3\",\"description\":\"\u039a\u03ce\u03c3\u03c4\u03b1\u03c2 \u039c\u03c0\u03bf\u03c5\u03c1\u03b1\u03b6\u03ac\u03bd\u03b1\u03c2\",\"publisher\":{\"@id\":\"https:\/\/omathimatikos.gr\/#organization\"},\"potentialAction\":[{\"@type\":\"SearchAction\",\"target\":{\"@type\":\"EntryPoint\",\"urlTemplate\":\"https:\/\/omathimatikos.gr\/?s={search_term_string}\"},\"query-input\":\"required name=search_term_string\"}],\"inLanguage\":\"el\"},{\"@type\":\"Organization\",\"@id\":\"https:\/\/omathimatikos.gr\/#organization\",\"name\":\"\u039f \u039c\u0391\u0398\u0397\u039c\u0391\u03a4\u0399\u039a\u039f\u03a3\",\"url\":\"https:\/\/omathimatikos.gr\/\",\"logo\":{\"@type\":\"ImageObject\",\"inLanguage\":\"el\",\"@id\":\"https:\/\/omathimatikos.gr\/#\/schema\/logo\/image\/\",\"url\":\"\",\"contentUrl\":\"\",\"caption\":\" \u039f \u039c\u0391\u0398\u0397\u039c\u0391\u03a4\u0399\u039a\u039f\u03a3\"},\"image\":{\"@id\":\"https:\/\/omathimatikos.gr\/#\/schema\/logo\/image\/\"},\"sameAs\":[\"https:\/\/www.facebook.com\/omathimatikos\/\"]},{\"@type\":\"Person\",\"@id\":\"https:\/\/omathimatikos.gr\/#\/schema\/person\/f06b5f15d628d878ee88431b07152cbe\",\"name\":\"...\",\"sameAs\":[\"http:\/\/omathimatikos.gr\"],\"url\":\"https:\/\/omathimatikos.gr\/?author=2\"}]}<\/script>\n<!-- \/ Yoast SEO plugin. -->","yoast_head_json":{"title":"O Landau \u03ba\u03b1\u03b9 \u03bf\u03b9 \u03c0\u03b9\u03bd\u03b1\u03ba\u03af\u03b4\u03b5\u03c2 \u03ba\u03c5\u03ba\u03bb\u03bf\u03c6\u03bf\u03c1\u03af\u03b1\u03c2 \u03b1\u03c5\u03c4\u03bf\u03ba\u03b9\u03bd\u03ae\u03c4\u03c9\u03bd &#8211; \u039f \u039c\u0391\u0398\u0397\u039c\u0391\u03a4\u0399\u039a\u039f\u03a3","robots":{"index":"index","follow":"follow","max-snippet":"max-snippet:-1","max-image-preview":"max-image-preview:large","max-video-preview":"max-video-preview:-1"},"canonical":"https:\/\/omathimatikos.gr\/?p=49327","og_locale":"el_GR","og_type":"article","og_title":"O Landau \u03ba\u03b1\u03b9 \u03bf\u03b9 \u03c0\u03b9\u03bd\u03b1\u03ba\u03af\u03b4\u03b5\u03c2 \u03ba\u03c5\u03ba\u03bb\u03bf\u03c6\u03bf\u03c1\u03af\u03b1\u03c2 \u03b1\u03c5\u03c4\u03bf\u03ba\u03b9\u03bd\u03ae\u03c4\u03c9\u03bd &#8211; \u039f \u039c\u0391\u0398\u0397\u039c\u0391\u03a4\u0399\u039a\u039f\u03a3","og_url":"https:\/\/omathimatikos.gr\/?p=49327","og_site_name":"\u039f \u039c\u0391\u0398\u0397\u039c\u0391\u03a4\u0399\u039a\u039f\u03a3","article_publisher":"https:\/\/www.facebook.com\/omathimatikos\/","article_published_time":"2021-01-11T17:37:03+00:00","article_modified_time":"2021-01-11T07:43:17+00:00","og_image":[{"width":778,"height":519,"url":"https:\/\/i0.wp.com\/omathimatikos.gr\/wp-content\/uploads\/2021\/01\/landau.jpg?fit=778%2C519&ssl=1","type":"image\/jpeg"}],"author":"...","twitter_card":"summary_large_image","twitter_misc":{"\u03a3\u03c5\u03bd\u03c4\u03ac\u03c7\u03b8\u03b7\u03ba\u03b5 \u03b1\u03c0\u03cc":"..."},"schema":{"@context":"https:\/\/schema.org","@graph":[{"@type":"Article","@id":"https:\/\/omathimatikos.gr\/?p=49327#article","isPartOf":{"@id":"https:\/\/omathimatikos.gr\/?p=49327"},"author":{"name":"...","@id":"https:\/\/omathimatikos.gr\/#\/schema\/person\/f06b5f15d628d878ee88431b07152cbe"},"headline":"O Landau \u03ba\u03b1\u03b9 \u03bf\u03b9 \u03c0\u03b9\u03bd\u03b1\u03ba\u03af\u03b4\u03b5\u03c2 \u03ba\u03c5\u03ba\u03bb\u03bf\u03c6\u03bf\u03c1\u03af\u03b1\u03c2 \u03b1\u03c5\u03c4\u03bf\u03ba\u03b9\u03bd\u03ae\u03c4\u03c9\u03bd","datePublished":"2021-01-11T17:37:03+00:00","dateModified":"2021-01-11T07:43:17+00:00","mainEntityOfPage":{"@id":"https:\/\/omathimatikos.gr\/?p=49327"},"wordCount":46,"commentCount":0,"publisher":{"@id":"https:\/\/omathimatikos.gr\/#organization"},"image":{"@id":"https:\/\/omathimatikos.gr\/?p=49327#primaryimage"},"thumbnailUrl":"https:\/\/i0.wp.com\/omathimatikos.gr\/wp-content\/uploads\/2021\/01\/landau.jpg?fit=778%2C519&ssl=1","articleSection":["\u0395\u039d\u0394\u0399\u0391\u03a6\u0395\u03a1\u039f\u039d\u03a4\u0391"],"inLanguage":"el","potentialAction":[{"@type":"CommentAction","name":"Comment","target":["https:\/\/omathimatikos.gr\/?p=49327#respond"]}]},{"@type":"WebPage","@id":"https:\/\/omathimatikos.gr\/?p=49327","url":"https:\/\/omathimatikos.gr\/?p=49327","name":"O Landau \u03ba\u03b1\u03b9 \u03bf\u03b9 \u03c0\u03b9\u03bd\u03b1\u03ba\u03af\u03b4\u03b5\u03c2 \u03ba\u03c5\u03ba\u03bb\u03bf\u03c6\u03bf\u03c1\u03af\u03b1\u03c2 \u03b1\u03c5\u03c4\u03bf\u03ba\u03b9\u03bd\u03ae\u03c4\u03c9\u03bd &#8211; \u039f \u039c\u0391\u0398\u0397\u039c\u0391\u03a4\u0399\u039a\u039f\u03a3","isPartOf":{"@id":"https:\/\/omathimatikos.gr\/#website"},"primaryImageOfPage":{"@id":"https:\/\/omathimatikos.gr\/?p=49327#primaryimage"},"image":{"@id":"https:\/\/omathimatikos.gr\/?p=49327#primaryimage"},"thumbnailUrl":"https:\/\/i0.wp.com\/omathimatikos.gr\/wp-content\/uploads\/2021\/01\/landau.jpg?fit=778%2C519&ssl=1","datePublished":"2021-01-11T17:37:03+00:00","dateModified":"2021-01-11T07:43:17+00:00","breadcrumb":{"@id":"https:\/\/omathimatikos.gr\/?p=49327#breadcrumb"},"inLanguage":"el","potentialAction":[{"@type":"ReadAction","target":["https:\/\/omathimatikos.gr\/?p=49327"]}]},{"@type":"ImageObject","inLanguage":"el","@id":"https:\/\/omathimatikos.gr\/?p=49327#primaryimage","url":"https:\/\/i0.wp.com\/omathimatikos.gr\/wp-content\/uploads\/2021\/01\/landau.jpg?fit=778%2C519&ssl=1","contentUrl":"https:\/\/i0.wp.com\/omathimatikos.gr\/wp-content\/uploads\/2021\/01\/landau.jpg?fit=778%2C519&ssl=1","width":778,"height":519},{"@type":"BreadcrumbList","@id":"https:\/\/omathimatikos.gr\/?p=49327#breadcrumb","itemListElement":[{"@type":"ListItem","position":1,"name":"Home","item":"https:\/\/omathimatikos.gr\/"},{"@type":"ListItem","position":2,"name":"O Landau \u03ba\u03b1\u03b9 \u03bf\u03b9 \u03c0\u03b9\u03bd\u03b1\u03ba\u03af\u03b4\u03b5\u03c2 \u03ba\u03c5\u03ba\u03bb\u03bf\u03c6\u03bf\u03c1\u03af\u03b1\u03c2 \u03b1\u03c5\u03c4\u03bf\u03ba\u03b9\u03bd\u03ae\u03c4\u03c9\u03bd"}]},{"@type":"WebSite","@id":"https:\/\/omathimatikos.gr\/#website","url":"https:\/\/omathimatikos.gr\/","name":"\u039f \u039c\u0391\u0398\u0397\u039c\u0391\u03a4\u0399\u039a\u039f\u03a3","description":"\u039a\u03ce\u03c3\u03c4\u03b1\u03c2 \u039c\u03c0\u03bf\u03c5\u03c1\u03b1\u03b6\u03ac\u03bd\u03b1\u03c2","publisher":{"@id":"https:\/\/omathimatikos.gr\/#organization"},"potentialAction":[{"@type":"SearchAction","target":{"@type":"EntryPoint","urlTemplate":"https:\/\/omathimatikos.gr\/?s={search_term_string}"},"query-input":"required name=search_term_string"}],"inLanguage":"el"},{"@type":"Organization","@id":"https:\/\/omathimatikos.gr\/#organization","name":"\u039f \u039c\u0391\u0398\u0397\u039c\u0391\u03a4\u0399\u039a\u039f\u03a3","url":"https:\/\/omathimatikos.gr\/","logo":{"@type":"ImageObject","inLanguage":"el","@id":"https:\/\/omathimatikos.gr\/#\/schema\/logo\/image\/","url":"","contentUrl":"","caption":" \u039f \u039c\u0391\u0398\u0397\u039c\u0391\u03a4\u0399\u039a\u039f\u03a3"},"image":{"@id":"https:\/\/omathimatikos.gr\/#\/schema\/logo\/image\/"},"sameAs":["https:\/\/www.facebook.com\/omathimatikos\/"]},{"@type":"Person","@id":"https:\/\/omathimatikos.gr\/#\/schema\/person\/f06b5f15d628d878ee88431b07152cbe","name":"...","sameAs":["http:\/\/omathimatikos.gr"],"url":"https:\/\/omathimatikos.gr\/?author=2"}]}},"jetpack_featured_media_url":"https:\/\/i0.wp.com\/omathimatikos.gr\/wp-content\/uploads\/2021\/01\/landau.jpg?fit=778%2C519&ssl=1","jetpack_sharing_enabled":true,"jetpack_likes_enabled":true,"jetpack-related-posts":[],"_links":{"self":[{"href":"https:\/\/omathimatikos.gr\/index.php?rest_route=\/wp\/v2\/posts\/49327"}],"collection":[{"href":"https:\/\/omathimatikos.gr\/index.php?rest_route=\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/omathimatikos.gr\/index.php?rest_route=\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/omathimatikos.gr\/index.php?rest_route=\/wp\/v2\/users\/2"}],"replies":[{"embeddable":true,"href":"https:\/\/omathimatikos.gr\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=49327"}],"version-history":[{"count":1,"href":"https:\/\/omathimatikos.gr\/index.php?rest_route=\/wp\/v2\/posts\/49327\/revisions"}],"predecessor-version":[{"id":49329,"href":"https:\/\/omathimatikos.gr\/index.php?rest_route=\/wp\/v2\/posts\/49327\/revisions\/49329"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/omathimatikos.gr\/index.php?rest_route=\/wp\/v2\/media\/49328"}],"wp:attachment":[{"href":"https:\/\/omathimatikos.gr\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=49327"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/omathimatikos.gr\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=49327"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/omathimatikos.gr\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=49327"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}