{"id":2695,"date":"2023-01-11T16:40:36","date_gmt":"2023-01-11T07:40:36","guid":{"rendered":"https:\/\/www.kmi.nagoya-u.ac.jp\/eng\/?post_type=seminar&p=2695"},"modified":"2023-01-11T16:40:36","modified_gmt":"2023-01-11T07:40:36","slug":"singularity-theorem-and-non-singular-universe","status":"publish","type":"seminar","link":"https:\/\/www.kmi.nagoya-u.ac.jp\/eng\/seminar\/2695\/","title":{"rendered":"Singularity Theorem and Non-Singular Universe"},"content":{"rendered":"

The initial singularity of the Universe, which is predicted by the singularity theorem, is one of the big mystery in cosmology. I discuss an application of the black hole singularity theorem by Penrose to a
\nnon-singular universe. I found that, under some assumptions, the initial singularity of a universe can be avoidable only when there are compact time slices. In addition, it is found that there is an upper bound to the size of such a compact non-singular universe.<\/p>\n","protected":false},"featured_media":0,"template":"","tags":[],"seminar_category":[58],"acf":{"s_now_accepting":true,"s_date_order":"2023-01-18 17:30:00","s_date_end":null,"s_date_text":"","s_text":"Daisuke Yoshida (Department of Math, Nagoya University)","s_place":"Zoom only","s_place_other":"","s_categoryother":"","s_poster":"","s_poster2":"","s_slide":""},"yoast_head":"\nSingularity Theorem and Non-Singular Universe - KMI - Nagoya University<\/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:\/\/www.kmi.nagoya-u.ac.jp\/eng\/seminar\/2695\/\" \/>\n<meta property=\"og:locale\" content=\"en_US\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"Singularity Theorem and Non-Singular Universe - KMI - Nagoya University\" \/>\n<meta property=\"og:description\" content=\"The initial singularity of the Universe, which is predicted by the singularity theorem, is one of the big mystery in cosmology. 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