{"id":2968,"date":"2025-03-12T21:03:07","date_gmt":"2025-03-12T19:03:07","guid":{"rendered":"https:\/\/mathematics.haifa.ac.il\/?p=2968"},"modified":"2025-04-03T10:08:43","modified_gmt":"2025-04-03T07:08:43","slug":"colloquium-tuesday-mar-18-2025-speaker-pierre-lochak-jussieu-title-grothendieck-post-70-and-his-galois-teichmuller-theory","status":"publish","type":"post","link":"https:\/\/mathematics.haifa.ac.il\/?p=2968","title":{"rendered":"Colloquium: Tuesday Mar. 18, 2025. Speaker: Pierre Lochak (Jussieu). Title: &#8220;Grothendieck post-70 and his Galois-Teichm\u00fcller theory&#8221;."},"content":{"rendered":"\n<p class=\"wp-block-paragraph\"><strong>Speaker:<\/strong>&nbsp;Pierre Lochak (Jussieu)<\/p>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>Place:&nbsp;<\/strong>Room 614, Education and Sciences Building, University of Haifa<\/p>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>Date and Time:<\/strong>&nbsp;March 18, 2025, 14:00-15:00<\/p>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>Title:&nbsp;<\/strong><em>Grothendieck post-70 and his Galois-Teichm\u00fcller theory<\/em><\/p>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>Abstract:\u00a0<\/strong>Alexandre Grothendieck left IH\u00c9S in 1970. For a few years he wouldn&#8217;t think of mathematics so much any more but then several &#8220;mathematical crises&#8221; occurred, almost against his own will and for about a decade (1981-1991), he produced remarkable and highly influential manuscripts. I will concentrate especially on the ideas which are delineated his famous &#8220;Esquisse d&#8217;un Programme&#8221; (&#8220;Sketch of a program&#8221;, 1984), which in particular contains the reflections about the popular &#8220;dessins d&#8217;enfants&#8221; but in fact much more, in the form of Galois-Teichm\u00fcller (nowadays Grorhendieck-Teichm\u00fcller) theory. These ideas have been pursued and advanced and have turned into a contemporary area of research.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>Zoom link:&nbsp;<\/strong><a href=\"https:\/\/us02web.zoom.us\/j\/87282501214?pwd=gnoO4TOG9LKBQJrfQ89Od7nUkoy0S3.1\" target=\"_blank\" rel=\"noreferrer noopener\">https:\/\/us02web.zoom.us\/j\/87282501214?pwd=gnoO4TOG9LKBQJrfQ89Od7nUkoy0S3.1<\/a> Meeting ID: 872 8250 1214<\/p>\n","protected":false},"excerpt":{"rendered":"<p>Speaker:&nbsp;Pierre Lochak (Jussieu) Place:&nbsp;Room 614, Education and Sciences Building, University of Haifa Date and Time:&nbsp;March 18, 2025, 14:00-15:00 Title:&nbsp;Grothendieck post-70 and his Galois-Teichm\u00fcller theory Abstract:\u00a0Alexandre Grothendieck left IH\u00c9S in 1970. For a few years he wouldn&#8217;t think of mathematics so&#8230;<br \/><a class=\"read-more-button\" href=\"https:\/\/mathematics.haifa.ac.il\/?p=2968\">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":[7],"tags":[],"class_list":["post-2968","post","type-post","status-publish","format-standard","hentry","category-colloquium"],"_links":{"self":[{"href":"https:\/\/mathematics.haifa.ac.il\/index.php?rest_route=\/wp\/v2\/posts\/2968","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/mathematics.haifa.ac.il\/index.php?rest_route=\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/mathematics.haifa.ac.il\/index.php?rest_route=\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/mathematics.haifa.ac.il\/index.php?rest_route=\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/mathematics.haifa.ac.il\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=2968"}],"version-history":[{"count":1,"href":"https:\/\/mathematics.haifa.ac.il\/index.php?rest_route=\/wp\/v2\/posts\/2968\/revisions"}],"predecessor-version":[{"id":2969,"href":"https:\/\/mathematics.haifa.ac.il\/index.php?rest_route=\/wp\/v2\/posts\/2968\/revisions\/2969"}],"wp:attachment":[{"href":"https:\/\/mathematics.haifa.ac.il\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=2968"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/mathematics.haifa.ac.il\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=2968"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/mathematics.haifa.ac.il\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=2968"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}