{ "151678-21911940": { "datetime_modified":"20260908T002719", "datetime_start":"20260911T150000", "datetime_end":"20260911T160000", "has_end_time":1, "date_start":"2026-09-11", "date_end":"2026-09-11", "time_start":"15:00:00", "time_end":"16:00:00", "time_zone":"America\/Detroit", "event_title":"Student Algebraic Geometry: Reconstruction Theorems", "occurrence_title":"", "combined_title":"Student Algebraic Geometry: Reconstruction Theorems: Ritwick Bhargava", "event_subtitle":"Ritwick Bhargava", "event_type":"Workshop \/ Seminar", "event_type_id":"21", "description":"Gabriel's reconstruction theorem states that a noetherian scheme can be fully recovered from its abelian category of quasi-coherent sheaves. This motivates noncommutative algebraic geometry, which advocates viewing any abelian category as a category of sheaves on a \"noncommutative space\". I will sketch two approaches to the proof and discuss extensions to the derived and stacky settings.", "occurrence_notes":null, "guid":"151678-21911940@events.umich.edu", "permalink":"http:\/\/events.umich.edu\/event\/151678", "building_id":"1000166", "building_name":"East Hall", "campus_maps_id":"53", "room":"2866", "location_name":"East Hall", "has_livestream":0, "cost":"", "tags":["Mathematics"], "website":"", "sponsors":[ { "group_name":"Student Algebraic Geometry Seminar - Department of Mathematics", "group_id":"4904", "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":21911940 } , "138091-21908258": { "datetime_modified":"20260812T103351", "datetime_start":"20260911T150000", "datetime_end":"20260911T160000", "has_end_time":1, "date_start":"2026-09-11", "date_end":"2026-09-11", "time_start":"15:00:00", "time_end":"16:00:00", "time_zone":"America\/Detroit", "event_title":"Sustainability Coffee Chats: Free coffee and good conversation!", "occurrence_title":"", "combined_title":"Sustainability Coffee Chats: Free coffee and good conversation!", "event_subtitle":"", "event_type":"Social \/ Informal Gathering", "event_type_id":"19", "description":"The Student Sustainability Coalition will be hosting our coffee chats throughout the semester and we want you to join us! Passionate about sustainability?--water conservation, AI, carbon neutrality, transportation, ANYTHING!--come chat with us, share your passion(s) and interests, all while helping contribute to a more sustainable University of Michigan! Not to mention: WE WILL BUY YOUR DRINK!\n\nFind us at: \nMaizes Cafe every Friday from 3-4p", "occurrence_notes":null, "guid":"138091-21908258@events.umich.edu", "permalink":"http:\/\/events.umich.edu\/event\/138091", "building_id":"1000191", "building_name":"Michigan League", "campus_maps_id":"108", "room":"Maizie's Cafe", "location_name":"Michigan League", "has_livestream":0, "cost":"", "tags":["Activism","Climate Change","Discussion","Food","food and the environment","Free","Free Food","Graduate and Professional Students","In Person","Social","Social Impact","Student Org","Sustainability","Talk","Undergraduate Students"], "website":"https:\/\/planetblue.umich.edu\/campus\/get-involved\/for-students\/student-orgs\/ssc", "sponsors":[ { "group_name":"Student Sustainability Coalition", "group_id":"4616", "website":"" }, { "group_name":"Student Life Sustainability", "group_id":"4678", "website":"" } ], 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"description":"", "occurrence_notes":null, "guid":"149272-21911112@events.umich.edu", "permalink":"http:\/\/events.umich.edu\/event\/149272", "building_id":"", "building_name":"", "campus_maps_id":"", "room":"", "location_name":"Faculty Dining Room", "has_livestream":0, "cost":"", "tags":["Sessions"], "website":"https:\/\/sessions.studentlife.umich.edu\/p\/track\/17106", "sponsors":[ { "group_name":"Sessions @ Michigan", "group_id":"4791", "website":"https:\/\/sessions.studentlife.umich.edu\/" } ], "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":16, "first_occurrence":21906099 } , "148388-21904175": { "datetime_modified":"20260903T145225", "datetime_start":"20260911T150000", "datetime_end":"20260911T160000", "has_end_time":1, "date_start":"2026-09-11", "date_end":"2026-09-11", "time_start":"15:00:00", "time_end":"16:00:00", "time_zone":"America\/Detroit", "event_title":"Type C multiline queues and the open-boundary TASEP", "occurrence_title":"", "combined_title":"Type C multiline queues and the open-boundary TASEP: Olya Mandelshtam (Waterloo)", "event_subtitle":"Olya Mandelshtam (Waterloo)", "event_type":"Workshop \/ Seminar", "event_type_id":"21", "description":"The multispecies TASEP on a circle is a particle model whose partition function is connected to Macdonald polynomials at t=0. Multiline queues were introduced by Ferrari and Martin (2007) to compute the stationary distribution of the TASEP on a circle. Their construction admits a natural interpretation in terms of tensor products of Kirillov\u2013Reshetikhin crystals of affine type A, and a map from these tensor products to TASEP states is given by crystal-theoretic operations. We show that there is a natural Markov chain on the crystal that projects to the TASEP via this map.\nThe multispecies open boundary TASEP can be viewed as a type C analogue, with its partition function connected to Koornwinder polynomials at t=0. However, computing its stationary distribution beyond rank 1 has remained a longstanding open problem. Using Kirillov\u2013Reshetikhin crystals of affine type C, we construct type C multiline queues and a corresponding Ferrari\u2013Martin pairing algorithm, and show the crystal likewise admits a Markov chain that projects to the TASEP. Our construction is a combinatorial interpretation of the virtualization map for Kashiwara\u2013Nakashima columns. We thus obtain a crystal-theoretic formula for the stationary distribution of the multispecies open boundary TASEP at the specialization alpha=beta=1. This is joint work with Jeronimo Valencia Porras.", "occurrence_notes":null, "guid":"148388-21904175@events.umich.edu", "permalink":"http:\/\/events.umich.edu\/event\/148388", "building_id":"1000166", "building_name":"East Hall", "campus_maps_id":"53", "room":"4088", "location_name":"East Hall", "has_livestream":0, "cost":"", "tags":["Mathematics"], "website":"", "sponsors":[ { "group_name":"Combinatorics Seminar - Department of Mathematics", "group_id":"4885", "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":21904175 } , "150757-21911431": { "datetime_modified":"20260908T092144", "datetime_start":"20260911T153000", "datetime_end":"20260911T163000", "has_end_time":1, "date_start":"2026-09-11", "date_end":"2026-09-11", "time_start":"15:30:00", "time_end":"16:30:00", "time_zone":"America\/Detroit", "event_title":"Markley (2026-2027) (Housing)", "occurrence_title":"Where In The World?", "combined_title":"Markley (2026-2027) (Housing): Multiple conference events and sessions: Where In The World?", "event_subtitle":"Multiple conference events and sessions", "event_type":"Conference \/ Symposium", "event_type_id":"5", "description":"", "occurrence_notes":null, "guid":"150757-21911431@events.umich.edu", "permalink":"http:\/\/events.umich.edu\/event\/150757", "building_id":"", "building_name":"", "campus_maps_id":"", "room":"", "location_name":"South Lounge", "has_livestream":0, "cost":"", "tags":["Sessions"], "website":"https:\/\/sessions.studentlife.umich.edu\/p\/track\/17098", "sponsors":[ { "group_name":"Sessions @ Michigan", "group_id":"4791", "website":"https:\/\/sessions.studentlife.umich.edu\/" } ], "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":14, "first_occurrence":21911387 } }