{"id":12475,"date":"2019-11-22T17:25:39","date_gmt":"2019-11-22T14:25:39","guid":{"rendered":"https:\/\/w3.bilkent.edu.tr\/en\/?p=12475"},"modified":"2019-11-28T15:23:45","modified_gmt":"2019-11-28T12:23:45","slug":"math-seminar-non-stationary-energy-in-general-relativity-bayram-tekin-metu-sa-141-240pm-november-28-en","status":"publish","type":"post","link":"https:\/\/w3.bilkent.edu.tr\/en\/math-seminar-non-stationary-energy-in-general-relativity-bayram-tekin-metu-sa-141-240pm-november-28-en\/","title":{"rendered":"MATH Seminar: \u201cNon-stationary energy in general relativity,\u201d Bayram Tekin (METU), SA-141, 2:40PM November 28 (EN)"},"content":{"rendered":"<div class=\"moz-text-html\" lang=\"x-unicode\">\n<p>Dear Colleagues and Students,<\/p>\n<p>You are cordially invited to the Applied Mathematics Seminar organized by the Department of Mathematics.<\/p>\n<p>Speaker: Bayram Tekin (METU)<\/p>\n<p>\u201cNON-STATIONARY ENERGY IN GENERAL RELATIVITY\u201d<\/p>\n<p>Abstract: Using the time evolution equations of (cosmological) General Relativity in the first order Fischer-Marsden form, we construct an integral that measures the amount of non-stationary energy on a given spacelike hypersurface in D dimensions. The integral vanishes for stationary spacetimes; and with a further assumption, reduces to Dain\u2019s invariant on the boundary of the hypersurface which is defined with the Einstein constraints and a fourth order equation defining approximate Killing symmetries.<\/p>\n<p>Date: November 28, 2019<br \/>\nTime: 14:40<br \/>\nPlace: SA \u2013 141<\/p>\n<\/div>\n","protected":false},"excerpt":{"rendered":"<p>Dear Colleagues and Students, You are cordially invited to the Applied Mathematics Seminar organized by the Department of Mathematics. Speaker: Bayram Tekin (METU) \u201cNON-STATIONARY ENERGY IN GENERAL RELATIVITY\u201d Abstract: Using the time evolution equations of (cosmological) General Relativity in the first order Fischer-Marsden form, we construct an integral that measures [\u2026] <\/p>\n<div class=\"clear\"><\/div>\n<p><a class=\"more_link clearfix\" href=\"https:\/\/w3.bilkent.edu.tr\/en\/math-seminar-non-stationary-energy-in-general-relativity-bayram-tekin-metu-sa-141-240pm-november-28-en\/\" rel=\"nofollow\">Read More<\/a><\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[12],"tags":[],"class_list":["post-12475","post","type-post","status-publish","format-standard","hentry","category-oldposts"],"_links":{"self":[{"href":"https:\/\/w3.bilkent.edu.tr\/en\/wp-json\/wp\/v2\/posts\/12475","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/w3.bilkent.edu.tr\/en\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/w3.bilkent.edu.tr\/en\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/w3.bilkent.edu.tr\/en\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/w3.bilkent.edu.tr\/en\/wp-json\/wp\/v2\/comments?post=12475"}],"version-history":[{"count":1,"href":"https:\/\/w3.bilkent.edu.tr\/en\/wp-json\/wp\/v2\/posts\/12475\/revisions"}],"predecessor-version":[{"id":12476,"href":"https:\/\/w3.bilkent.edu.tr\/en\/wp-json\/wp\/v2\/posts\/12475\/revisions\/12476"}],"wp:attachment":[{"href":"https:\/\/w3.bilkent.edu.tr\/en\/wp-json\/wp\/v2\/media?parent=12475"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/w3.bilkent.edu.tr\/en\/wp-json\/wp\/v2\/categories?post=12475"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/w3.bilkent.edu.tr\/en\/wp-json\/wp\/v2\/tags?post=12475"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}