{ "143077-21892023": { "datetime_modified":"20260204T205537", "datetime_start":"20260209T160000", "datetime_end":"20260209T170000", "has_end_time":1, "date_start":"2026-02-09", "date_end":"2026-02-09", "time_start":"16:00:00", "time_end":"17:00:00", "time_zone":"America\/Detroit", "event_title":"Continuum Calogero--Moser models", "occurrence_title":"", "combined_title":"Continuum Calogero--Moser models: Thierry Laurens (University of Wisconsin-Madison)", "event_subtitle":"Thierry Laurens (University of Wisconsin-Madison)", "event_type":"Livestream \/ Virtual", "event_type_id":"24", "description":"The focusing CCM equation is a completely integrable PDE that describes a continuum limit of a particle gas interacting pairwise through an inverse-square potential. This system is well-posed below the mass of the soliton, but above this threshold there are solutions that blow up in finite time.\n\nThe defocusing model arises as a modulation equation for internal waves in a deep stratified fluid. In this setting, it is a member of a family of systems known as the intermediate nonlinear Schr\u00f6dinger equations.\n\nIn this talk, we will discuss some recent well-posedness results for the continuum Calogero--Moser and intermediate nonlinear Schr\u00f6dinger equations. This is based on joint works with Andreia Chapouto, Justin Forlano, Rowan Killip, and Monica Visan.", "occurrence_notes":null, "guid":"143077-21892023@events.umich.edu", "permalink":"http:\/\/events.umich.edu\/event\/143077", "building_id":"null", "building_name":"Off Campus Location", "campus_maps_id":"1", "room":"", "location_name":"Virtual", "has_livestream":0, "cost":"", "tags":["Mathematics","Seminar","Virtual"], "website":"https:\/\/sites.google.com\/umich.edu\/isrmt-seminar\/", "sponsors":[ { "group_name":"Integrable Systems and Random Matrix Theory Seminar - Department of Mathematics", "group_id":"4893", "website":"" }, { "group_name":"Department of Mathematics", "group_id":"3791", "website":"" } ], "image_url":"", "styled_images":{ "event_thumb":"", "event_large":"", "event_large_2x":"", "event_large_lightbox":"", "group_thumb":"", "group_thumb_square":"", "group_large":"", "group_large_lightbox":"", "event_large_crop":"", "event_list":"", "event_list_2x":"", "event_grid":"", "event_grid_2x":"", "event_feature_large":"", "event_feature_thumb":"" }, "occurrence_count":1, "first_occurrence":21892023 } , "143316-21892896": { "datetime_modified":"20260131T114259", "datetime_start":"20260209T160000", "datetime_end":"20260209T170000", "has_end_time":1, "date_start":"2026-02-09", "date_end":"2026-02-09", "time_start":"16:00:00", "time_end":"17:00:00", "time_zone":"America\/Detroit", "event_title":"GLNT: On the separating words problem", "occurrence_title":"", "combined_title":"GLNT: On the separating words problem: Zachary Chase (Kent State University)", "event_subtitle":"Zachary Chase (Kent State University)", "event_type":"Workshop \/ Seminar", "event_type_id":"21", "description":"Abstract: What is the minimum number of states a deterministic finite automaton needs to distinguish between two given n-bit strings? We discuss progress on this problem made using unexpected techniques. No background assumed.", "occurrence_notes":null, "guid":"143316-21892896@events.umich.edu", "permalink":"http:\/\/events.umich.edu\/event\/143316", "building_id":"1000166", "building_name":"East Hall", "campus_maps_id":"53", "room":"4096", "location_name":"East Hall", "has_livestream":0, "cost":"", "tags":["Mathematics"], "website":"", "sponsors":[ { "group_name":"Group, Lie and Number Theory Seminar - Department of Mathematics", "group_id":"4892", "website":"" }, { "group_name":"Department of Mathematics", "group_id":"3791", "website":"" } ], "image_url":"https:\/\/events.umich.edu\/media\/attachments\/2026\/01\/event_143316_original-1.png", "styled_images":{ "event_thumb":"https:\/\/events.umich.edu\/media\/cache\/event_thumb\/media\/attachments\/2026\/01\/crop-event_143316_original-1.png", "event_large":"https:\/\/events.umich.edu\/media\/cache\/event_large\/media\/attachments\/2026\/01\/crop-event_143316_original-1.png", "event_large_2x":"https:\/\/events.umich.edu\/media\/cache\/event_large_2x\/media\/attachments\/2026\/01\/crop-event_143316_original-1.png", "event_large_lightbox":"https:\/\/events.umich.edu\/media\/cache\/event_large_lightbox\/media\/attachments\/2026\/01\/crop-event_143316_original-1.png", "group_thumb":"https:\/\/events.umich.edu\/media\/cache\/group_thumb\/media\/attachments\/2026\/01\/crop-event_143316_original-1.png", "group_thumb_square":"https:\/\/events.umich.edu\/media\/cache\/group_thumb_square\/media\/attachments\/2026\/01\/crop-event_143316_original-1.png", "group_large":"https:\/\/events.umich.edu\/media\/cache\/group_large\/media\/attachments\/2026\/01\/crop-event_143316_original-1.png", "group_large_lightbox":"https:\/\/events.umich.edu\/media\/cache\/group_large_lightbox\/media\/attachments\/2026\/01\/crop-event_143316_original-1.png", "event_large_crop":"https:\/\/events.umich.edu\/media\/cache\/event_large_crop\/media\/attachments\/2026\/01\/crop-event_143316_original-1.png", "event_list":"https:\/\/events.umich.edu\/media\/cache\/event_list\/media\/attachments\/2026\/01\/crop-event_143316_original-1.png", "event_list_2x":"https:\/\/events.umich.edu\/media\/cache\/event_list_2x\/media\/attachments\/2026\/01\/crop-event_143316_original-1.png", "event_grid":"https:\/\/events.umich.edu\/media\/cache\/event_grid\/media\/attachments\/2026\/01\/crop-event_143316_original-1.png", "event_grid_2x":"https:\/\/events.umich.edu\/media\/cache\/event_grid_2x\/media\/attachments\/2026\/01\/crop-event_143316_original-1.png", "event_feature_large":"https:\/\/events.umich.edu\/media\/cache\/event_feature_large\/media\/attachments\/2026\/01\/crop-event_143316_original-1.png", "event_feature_thumb":"https:\/\/events.umich.edu\/media\/cache\/event_feature_thumb\/media\/attachments\/2026\/01\/crop-event_143316_original-1.png" }, "occurrence_count":1, "first_occurrence":21892896 } }