{"id":42537,"date":"2026-05-05T17:07:11","date_gmt":"2026-05-05T15:07:11","guid":{"rendered":"https:\/\/kallithea.gr\/?p=42537"},"modified":"2026-05-05T18:41:24","modified_gmt":"2026-05-05T16:41:24","slug":"18%ce%bf-%ce%bc%ce%b1%ce%b8%ce%b7%cf%84%ce%b9%ce%ba%cf%8c-%cf%86%ce%b5%cf%83%cf%84%ce%b9%ce%b2%ce%ac%ce%bb-%ce%b4%ce%ae%ce%bc%ce%bf%cf%85-%ce%ba%ce%b1%ce%bb%ce%bb%ce%b9%ce%b8%ce%ad%ce%b1%cf%82-%ce%bc","status":"publish","type":"post","link":"https:\/\/kallithea.gr\/?p=42537","title":{"rendered":"18\u03bf \u039c\u03b1\u03b8\u03b7\u03c4\u03b9\u03ba\u03cc \u03a6\u03b5\u03c3\u03c4\u03b9\u03b2\u03ac\u03bb \u0394\u03ae\u03bc\u03bf\u03c5 \u039a\u03b1\u03bb\u03bb\u03b9\u03b8\u03ad\u03b1\u03c2. \u039c\u03b5 \u03c4\u03b7 \u03b4\u03cd\u03bd\u03b1\u03bc\u03b7 \u03c4\u03c9\u03bd \u03c3\u03c4\u03af\u03c7\u03c9\u03bd \u03c4\u03b7\u03c2 \u03c0\u03b1\u03c1\u03ac\u03b4\u03bf\u03c3\u03b7\u03c2, \u03bf\u03b9 \u03bc\u03b1\u03b8\u03b7\u03c4\u03ad\u03c2 \u03c7\u03bf\u03c1\u03b5\u03cd\u03bf\u03c5\u03bd \u03c4\u03b7 \u03b4\u03b7\u03bc\u03bf\u03c4\u03b9\u03ba\u03ae \u03c0\u03bf\u03af\u03b7\u03c3\u03b7 &#8211; \u03a3\u03ac\u03b2\u03b2\u03b1\u03c4\u03bf 9 \u039c\u03b1\u0390\u03bf\u03c5 2026 \u03ce\u03c1\u03b1 19:30 \u03c3\u03c4\u03b7\u03bd \u03a0\u03bb\u03b1\u03c4\u03b5\u03af\u03b1 \u0394\u03b1\u03b2\u03ac\u03ba\u03b7"},"content":{"rendered":"<p><span style=\"font-size: 120%;\">\u0397 \u03b5\u03ba\u03b4\u03ae\u03bb\u03c9\u03c3\u03b7 \u03b1\u03c0\u03bf\u03c4\u03b5\u03bb\u03b5\u03af \u03bc\u03b9\u03b1 \u03be\u03b5\u03c7\u03c9\u03c1\u03b9\u03c3\u03c4\u03ae \u03c3\u03c4\u03b9\u03b3\u03bc\u03ae \u03c7\u03b1\u03c1\u03ac\u03c2 \u03ba\u03b1\u03b9 \u03b4\u03b7\u03bc\u03b9\u03bf\u03c5\u03c1\u03b3\u03af\u03b1\u03c2 \u03b3\u03b9\u03b1 \u03c4\u03bf\u03bd \u0394\u03ae\u03bc\u03bf \u03bc\u03b1\u03c2, \u03ba\u03b1\u03b8\u03ce\u03c2 \u03bf\u03bb\u03bf\u03ba\u03bb\u03b7\u03c1\u03ce\u03bd\u03b5\u03c4\u03b1\u03b9 \u03c4\u03bf <strong>18\u03bf \u039c\u03b1\u03b8\u03b7\u03c4\u03b9\u03ba\u03cc \u03a6\u03b5\u03c3\u03c4\u03b9\u03b2\u03ac\u03bb.<\/strong><\/span><br \/>\n<span style=\"font-size: 120%;\">\u039f\u03b9 \u03bc\u03b1\u03b8\u03b7\u03c4\u03ad\u03c2 \u03ba\u03b1\u03b9 \u03bf\u03b9 \u03bc\u03b1\u03b8\u03ae\u03c4\u03c1\u03b9\u03b5\u03c2 \u03c0\u03bf\u03c5 \u03c3\u03c5\u03bc\u03bc\u03b5\u03c4\u03ad\u03c7\u03bf\u03c5\u03bd \u03b6\u03c9\u03bd\u03c4\u03b1\u03bd\u03b5\u03cd\u03bf\u03c5\u03bd \u03c4\u03b7\u03bd \u03c0\u03b1\u03c1\u03ac\u03b4\u03bf\u03c3\u03b7, \u03bc\u03b5\u03c4\u03b1\u03c6\u03ad\u03c1\u03bf\u03bd\u03c4\u03b1\u03c2 \u03c3\u03c4\u03bf \u03c3\u03ae\u03bc\u03b5\u03c1\u03b1 \u03c4\u03bf\u03bd \u03c0\u03bb\u03bf\u03cd\u03c4\u03bf \u03c4\u03b7\u03c2 \u03c0\u03bf\u03bb\u03b9\u03c4\u03b9\u03c3\u03c4\u03b9\u03ba\u03ae\u03c2 \u03bc\u03b1\u03c2 \u03ba\u03bb\u03b7\u03c1\u03bf\u03bd\u03bf\u03bc\u03b9\u03ac\u03c2. \u039c\u03b5 \u03b5\u03bd\u03b8\u03bf\u03c5\u03c3\u03b9\u03b1\u03c3\u03bc\u03cc, \u03c3\u03c5\u03bd\u03b5\u03c1\u03b3\u03b1\u03c3\u03af\u03b1 \u03ba\u03b1\u03b9 \u03b1\u03b3\u03ac\u03c0\u03b7 \u03b3\u03b9\u03b1 \u03c4\u03b7\u03bd \u03c4\u03ad\u03c7\u03bd\u03b7, \u03bc\u03b1\u03c2 \u03c7\u03b1\u03c1\u03af\u03b6\u03bf\u03c5\u03bd \u03bc\u03b9\u03b1 \u03cc\u03bc\u03bf\u03c1\u03c6\u03b7 \u03b3\u03b9\u03bf\u03c1\u03c4\u03ae \u03c0\u03bf\u03c5 \u03b1\u03be\u03af\u03b6\u03b5\u03b9 \u03c3\u03b5 \u03cc\u03bb\u03bf\u03c5\u03c2 \u03bc\u03b1\u03c2.<\/span><br \/>\n<span style=\"font-size: 120%;\">\u0398\u03b1 \u03b8\u03ad\u03bb\u03b1\u03bc\u03b5 \u03bd\u03b1 \u03c3\u03c5\u03b3\u03c7\u03b1\u03c1\u03bf\u03cd\u03bc\u03b5 \u03b8\u03b5\u03c1\u03bc\u03ac \u03cc\u03bb\u03bf\u03c5\u03c2 \u03c4\u03bf\u03c5\u03c2 \u03bc\u03b1\u03b8\u03b7\u03c4\u03ad\u03c2 \u03b3\u03b9\u03b1 \u03c4\u03b7 \u03c3\u03c5\u03bc\u03bc\u03b5\u03c4\u03bf\u03c7\u03ae \u03ba\u03b1\u03b9 \u03c4\u03b7\u03bd \u03c0\u03c1\u03bf\u03c3\u03c0\u03ac\u03b8\u03b5\u03b9\u03ac \u03c4\u03bf\u03c5\u03c2, \u03bd\u03b1 \u03b5\u03c5\u03c7\u03b1\u03c1\u03b9\u03c3\u03c4\u03ae\u03c3\u03bf\u03c5\u03bc\u03b5 \u03c4\u03bf\u03c5\u03c2 \u03b5\u03ba\u03c0\u03b1\u03b9\u03b4\u03b5\u03c5\u03c4\u03b9\u03ba\u03bf\u03cd\u03c2 \u03b3\u03b9\u03b1 \u03c4\u03b7\u03bd \u03b1\u03c6\u03bf\u03c3\u03af\u03c9\u03c3\u03b7 \u03ba\u03b1\u03b9 \u03c4\u03b7\u03bd \u03c0\u03bf\u03bb\u03cd\u03c4\u03b9\u03bc\u03b7 \u03ba\u03b1\u03b8\u03bf\u03b4\u03ae\u03b3\u03b7\u03c3\u03ae \u03c4\u03bf\u03c5\u03c2, \u03ba\u03b1\u03b8\u03ce\u03c2 \u03ba\u03b1\u03b9 \u03c4\u03bf\u03c5\u03c2 \u03b3\u03bf\u03bd\u03b5\u03af\u03c2 \u03b3\u03b9\u03b1 \u03c4\u03b7 \u03c3\u03c5\u03bd\u03b5\u03c7\u03ae \u03c3\u03c4\u03ae\u03c1\u03b9\u03be\u03b7 \u03ba\u03b1\u03b9 \u03c0\u03b1\u03c1\u03bf\u03c5\u03c3\u03af\u03b1 \u03c4\u03bf\u03c5\u03c2 \u03b4\u03af\u03c0\u03bb\u03b1 \u03c3\u03c4\u03b1 \u03c0\u03b1\u03b9\u03b4\u03b9\u03ac.<\/span><br \/>\n<strong><span style=\"font-size: 120%;\">\u039f \u0394\u03ae\u03bc\u03bf\u03c2 \u039a\u03b1\u03bb\u03bb\u03b9\u03b8\u03ad\u03b1\u03c2 \u03c3\u03c5\u03bd\u03b5\u03c7\u03af\u03b6\u03b5\u03b9 \u03bd\u03b1 \u03b5\u03c0\u03b5\u03bd\u03b4\u03cd\u03b5\u03b9 \u03c3\u03b5 \u03b4\u03c1\u03ac\u03c3\u03b5\u03b9\u03c2 \u03c0\u03bf\u03c5 \u03c0\u03c1\u03bf\u03ac\u03b3\u03bf\u03c5\u03bd \u03c4\u03bf\u03bd \u03c0\u03bf\u03bb\u03b9\u03c4\u03b9\u03c3\u03bc\u03cc \u03ba\u03b1\u03b9 \u03b4\u03af\u03bd\u03bf\u03c5\u03bd \u03b2\u03ae\u03bc\u03b1 \u03c3\u03c4\u03b7 \u03bd\u03ad\u03b1 \u03b3\u03b5\u03bd\u03b9\u03ac \u03bd\u03b1 \u03b5\u03ba\u03c6\u03c1\u03b1\u03c3\u03c4\u03b5\u03af \u03ba\u03b1\u03b9 \u03bd\u03b1 \u03b4\u03b7\u03bc\u03b9\u03bf\u03c5\u03c1\u03b3\u03ae\u03c3\u03b5\u03b9.<\/span><\/strong><\/p>\n<p style=\"text-align: center;\"><strong><span style=\"font-size: 130%;\"><span style=\"color: #ff0000;\"><i class=\"fas fa-calendar-alt\"><\/i><\/span>\u00a0 \u03a3\u03ac\u03b2\u03b2\u03b1\u03c4\u03bf 9 \u039c\u03b1\u0390\u03bf\u03c5 2026<\/span><\/strong><br \/>\n<strong><span style=\"font-size: 130%;\"><span style=\"color: #ff0000;\"><i class=\"fas fa-clock\"><\/i><\/span>\u00a0 \u03ce\u03c1\u03b1 19:30<\/span><\/strong><br \/>\n<strong><span style=\"font-size: 130%;\"><span style=\"color: #ff0000;\"><i class=\"fas fa-map-pin\"><\/i>\u00a0<\/span> \u03a0\u03bb\u03b1\u03c4\u03b5\u03af\u03b1 \u0394\u03b1\u03b2\u03ac\u03ba\u03b7<\/span><\/strong><\/p>\n<div class=\"row\"  id=\"row-1253626433\">\n\n\t<div id=\"col-1359611867\" class=\"col medium-4 small-12 large-4\"  >\n\t\t<div class=\"col-inner\"  >\n\t\t\t\n\t\t\t\n\t<div class=\"img has-hover x md-x lg-x y md-y lg-y\" id=\"image_1909871729\">\n\t\t<a class=\"\" href=\"https:\/\/kallithea.gr\/wp-content\/uploads\/2026\/05\/mathfest09052026.jpg\"  >\t\t\t\t\t\t<div class=\"img-inner dark\" >\n\t\t\t<img width=\"566\" height=\"800\" src=\"https:\/\/kallithea.gr\/wp-content\/uploads\/2026\/05\/mathfest09052026-566x800.jpg\" class=\"attachment-large size-large\" alt=\"\" decoding=\"async\" loading=\"lazy\" srcset=\"https:\/\/kallithea.gr\/wp-content\/uploads\/2026\/05\/mathfest09052026-566x800.jpg 566w, 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\u03bc\u03b1\u03c2, \u03ba\u03b1\u03b8\u03ce\u03c2 \u03bf\u03bb\u03bf\u03ba\u03bb\u03b7\u03c1\u03ce\u03bd\u03b5\u03c4\u03b1\u03b9 \u03c4\u03bf 18\u03bf \u039c\u03b1\u03b8\u03b7\u03c4\u03b9\u03ba\u03cc \u03a6\u03b5\u03c3\u03c4\u03b9\u03b2\u03ac\u03bb. \u039f\u03b9 \u03bc\u03b1\u03b8\u03b7\u03c4\u03ad\u03c2 \u03ba\u03b1\u03b9 \u03bf\u03b9 \u03bc\u03b1\u03b8\u03ae\u03c4\u03c1\u03b9\u03b5\u03c2 \u03c0\u03bf\u03c5 \u03c3\u03c5\u03bc\u03bc\u03b5\u03c4\u03ad\u03c7\u03bf\u03c5\u03bd \u03b6\u03c9\u03bd\u03c4\u03b1\u03bd\u03b5\u03cd\u03bf\u03c5\u03bd \u03c4\u03b7\u03bd \u03c0\u03b1\u03c1\u03ac\u03b4\u03bf\u03c3\u03b7, \u03bc\u03b5\u03c4\u03b1\u03c6\u03ad\u03c1\u03bf\u03bd\u03c4\u03b1\u03c2 \u03c3\u03c4\u03bf \u03c3\u03ae\u03bc\u03b5\u03c1\u03b1 \u03c4\u03bf\u03bd \u03c0\u03bb\u03bf\u03cd\u03c4\u03bf \u03c4\u03b7\u03c2 \u03c0\u03bf\u03bb\u03b9\u03c4\u03b9\u03c3\u03c4\u03b9\u03ba\u03ae\u03c2 \u03bc\u03b1\u03c2 \u03ba\u03bb\u03b7\u03c1\u03bf\u03bd\u03bf\u03bc\u03b9\u03ac\u03c2. \u039c\u03b5 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