{ "151634-21911880": { "datetime_modified":"20260911T101654", "datetime_start":"20260915T090000", "datetime_end":"20260915T100000", "has_end_time":1, "date_start":"2026-09-15", "date_end":"2026-09-15", "time_start":"09:00:00", "time_end":"10:00:00", "time_zone":"America\/Detroit", "event_title":"Direct and Inverse Scattering on Step-like Elliptic Backgrounds and Full Soliton Gases for the Focusing NLS Equation", "occurrence_title":"", "combined_title":"Direct and Inverse Scattering on Step-like Elliptic Backgrounds and Full Soliton Gases for the Focusing NLS Equation: Zechuan Zhang (SISSA, Italy)", "event_subtitle":"Zechuan Zhang (SISSA, Italy)", "event_type":"Livestream \/ Virtual", "event_type_id":"24", "description":"In this talk, I will present direct and inverse scattering for the focusing nonlinear Schr\u00f6dinger equation with initial data approaching elliptic traveling waves as \\(x\\to\\pm\\infty\\). Under suitable assumptions, we characterize the scattering data and establish a uniquely solvable Riemann\u2013Hilbert formulation. For a suitable class of reflectionless data, this formulation also arises as a continuum limit of multisoliton solutions, yielding a full soliton gas that remains nonvanishing at both spatial infinities.\nThis is joint work with Tamara Grava, Robert Jenkins and Xiaofan Zhang.", "occurrence_notes":null, "guid":"151634-21911880@events.umich.edu", "permalink":"http:\/\/events.umich.edu\/event\/151634", "building_id":"null", "building_name":"Off Campus Location", "campus_maps_id":"1", "room":"", "location_name":"Virtual", "has_livestream":0, "cost":"", "tags":["Seminar","Virtual","Mathematics"], "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":21911880 } , "151653-21911900": { "datetime_modified":"20260908T091736", "datetime_start":"20260915T090000", "datetime_end":"20260915T120000", "has_end_time":1, "date_start":"2026-09-15", "date_end":"2026-09-15", "time_start":"09:00:00", "time_end":"12:00:00", "time_zone":"America\/Detroit", "event_title":"Neurodiversity Fair", "occurrence_title":"", "combined_title":"Neurodiversity Fair", "event_subtitle":"", "event_type":"Fair \/ Festival", "event_type_id":"10", "description":"Join us as we explore organizations centering neurodiversity and disability from the local community! Groups will table in Rackham, talk about the work they are doing, and advertise ways to get involved! This event will include a sensory\/quiet space, local organizations from UM and Ann Arbor area, adaptive sports, and catering. Welcome to all!\n\nGenerously made possible by Larry Motola Linguistics Fund, which funds the development of curriculum projects about cognitive processes and conditions and their interaction with language.\n\nPlease RSVP here: https:\/\/forms.gle\/bUmd7f2WCkTdmp3o7\n\nWhere: 4th floor Assembly Hall - Rackham | 915 E Washington St, Ann Arbor, MI 48109\n\nWhen: Tuesday, September 15th\n\nTime: 9 AM - 12 PM EST\n\nPlease reach out to neurodiversity@umich.edu with any questions or concerns.", "occurrence_notes":null, "guid":"151653-21911900@events.umich.edu", "permalink":"http:\/\/events.umich.edu\/event\/151653", "building_id":"1000172", "building_name":"Rackham Graduate School (Horace H.)", "campus_maps_id":"71", "room":"4th Floor Assembly Hall", "location_name":"Rackham Graduate School (Horace H.)", "has_livestream":0, "cost":"", "tags":["Free","Rackham","human rights","In Person","Interdisciplinary","Linguistics","Networking","Neurodiversity","Food","Education","Diversity Equity and Inclusion","Diversity","Disability","All Majors Welcome","Accessibility"], "website":"https:\/\/lsa.umich.edu\/linguistics\/news-events\/all-events\/language---neurodiversity.html", "sponsors":[ { "group_name":"Department of Linguistics", "group_id":"3480", "website":"" } ], "image_url":"https:\/\/events.umich.edu\/media\/attachments\/2026\/09\/event_151653_original-1.png", "styled_images":{ "event_thumb":"https:\/\/events.umich.edu\/media\/cache\/resolve\/event_thumb\/media\/attachments\/2026\/09\/event_151653_original-1.png", "event_large":"https:\/\/events.umich.edu\/media\/cache\/event_large\/media\/attachments\/2026\/09\/event_151653_original-1.png", "event_large_2x":"https:\/\/events.umich.edu\/media\/cache\/event_large_2x\/media\/attachments\/2026\/09\/event_151653_original-1.png", "event_large_lightbox":"https:\/\/events.umich.edu\/media\/cache\/event_large_lightbox\/media\/attachments\/2026\/09\/event_151653_original-1.png", "group_thumb":"https:\/\/events.umich.edu\/media\/cache\/resolve\/group_thumb\/media\/attachments\/2026\/09\/event_151653_original-1.png", "group_thumb_square":"https:\/\/events.umich.edu\/media\/cache\/resolve\/group_thumb_square\/media\/attachments\/2026\/09\/event_151653_original-1.png", "group_large":"https:\/\/events.umich.edu\/media\/cache\/resolve\/group_large\/media\/attachments\/2026\/09\/event_151653_original-1.png", "group_large_lightbox":"https:\/\/events.umich.edu\/media\/cache\/resolve\/group_large_lightbox\/media\/attachments\/2026\/09\/event_151653_original-1.png", "event_large_crop":"https:\/\/events.umich.edu\/media\/cache\/resolve\/event_large_crop\/media\/attachments\/2026\/09\/event_151653_original-1.png", "event_list":"https:\/\/events.umich.edu\/media\/cache\/event_list\/media\/attachments\/2026\/09\/event_151653_original-1.png", "event_list_2x":"https:\/\/events.umich.edu\/media\/cache\/event_list_2x\/media\/attachments\/2026\/09\/event_151653_original-1.png", "event_grid":"https:\/\/events.umich.edu\/media\/cache\/event_grid\/media\/attachments\/2026\/09\/event_151653_original-1.png", "event_grid_2x":"https:\/\/events.umich.edu\/media\/cache\/resolve\/event_grid_2x\/media\/attachments\/2026\/09\/event_151653_original-1.png", "event_feature_large":"https:\/\/events.umich.edu\/media\/cache\/event_feature_large\/media\/attachments\/2026\/09\/event_151653_original-1.png", "event_feature_thumb":"https:\/\/events.umich.edu\/media\/cache\/resolve\/event_feature_thumb\/media\/attachments\/2026\/09\/event_151653_original-1.png" }, "occurrence_count":1, "first_occurrence":21911900 } }