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We will first describe the supersingular locus of these Shimura varieties, which provides Gysin maps induced by the closed immersions of the irreducible components of the supersingular locus.\n\nUsing these maps, we reduce the Tate conjecture to showing that a certain matrix has nonzero determinant, where the entries are given by Hecke actions and incidence numbers. The overall strategy is similar to the proof of the Tate conjecture for more general Shimura varieties, but expressed in a slightly more elaborate language.", "occurrence_notes":null, "guid":"146318-21898874@events.umich.edu", "permalink":"http:\/\/events.umich.edu\/event\/146318", "building_id":"1000166", "building_name":"East Hall", "campus_maps_id":"53", "room":"3088", "location_name":"East Hall", "has_livestream":0, "cost":"", "tags":["Mathematics"], "website":"", "sponsors":[ { "group_name":"Student Number Theory Seminar - Department of Mathematics", "group_id":"4906", "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":"", 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Free and open to the public.", "occurrence_notes":null, "guid":"145595-21897572@events.umich.edu", "permalink":"http:\/\/events.umich.edu\/event\/145595", "building_id":"1000054", "building_name":"East Quadrangle", "campus_maps_id":"54", "room":"Keene Theater", "location_name":"East Quadrangle", "has_livestream":0, "cost":"", "tags":["Free","music","Undergraduate","Undergraduate Students"], "website":"https:\/\/lsa.umich.edu\/rc\/reserve-a-room-\/the-keene-theater.html", "sponsors":[ { "group_name":"Keene Theater", "group_id":"5106", "website":"https:\/\/lsa.umich.edu\/rc\/reserve-a-room-\/the-keene-theater.html" }, { "group_name":"School of Music, Theatre & Dance (SMTD)", "group_id":"155", "website":"http:\/\/smtd.umich.edu\/events" }, { "group_name":"Residential College", "group_id":"1029", "website":"" }, { "group_name":"University Musical Society (UMS)", "group_id":"1141", "website":"" } ], "image_url":"https:\/\/events.umich.edu\/media\/attachments\/2026\/02\/event_145595_original-1.png", "styled_images":{ "event_thumb":"https:\/\/events.umich.edu\/media\/cache\/event_thumb\/media\/attachments\/2026\/02\/event_145595_original-1.png", "event_large":"https:\/\/events.umich.edu\/media\/cache\/event_large\/media\/attachments\/2026\/02\/event_145595_original-1.png", "event_large_2x":"https:\/\/events.umich.edu\/media\/cache\/event_large_2x\/media\/attachments\/2026\/02\/event_145595_original-1.png", "event_large_lightbox":"https:\/\/events.umich.edu\/media\/cache\/event_large_lightbox\/media\/attachments\/2026\/02\/event_145595_original-1.png", "group_thumb":"https:\/\/events.umich.edu\/media\/cache\/group_thumb\/media\/attachments\/2026\/02\/event_145595_original-1.png", "group_thumb_square":"https:\/\/events.umich.edu\/media\/cache\/group_thumb_square\/media\/attachments\/2026\/02\/event_145595_original-1.png", "group_large":"https:\/\/events.umich.edu\/media\/cache\/group_large\/media\/attachments\/2026\/02\/event_145595_original-1.png", "group_large_lightbox":"https:\/\/events.umich.edu\/media\/cache\/group_large_lightbox\/media\/attachments\/2026\/02\/event_145595_original-1.png", "event_large_crop":"https:\/\/events.umich.edu\/media\/cache\/event_large_crop\/media\/attachments\/2026\/02\/event_145595_original-1.png", "event_list":"https:\/\/events.umich.edu\/media\/cache\/event_list\/media\/attachments\/2026\/02\/event_145595_original-1.png", "event_list_2x":"https:\/\/events.umich.edu\/media\/cache\/event_list_2x\/media\/attachments\/2026\/02\/event_145595_original-1.png", "event_grid":"https:\/\/events.umich.edu\/media\/cache\/event_grid\/media\/attachments\/2026\/02\/event_145595_original-1.png", "event_grid_2x":"https:\/\/events.umich.edu\/media\/cache\/event_grid_2x\/media\/attachments\/2026\/02\/event_145595_original-1.png", "event_feature_large":"https:\/\/events.umich.edu\/media\/cache\/event_feature_large\/media\/attachments\/2026\/02\/event_145595_original-1.png", "event_feature_thumb":"https:\/\/events.umich.edu\/media\/cache\/event_feature_thumb\/media\/attachments\/2026\/02\/event_145595_original-1.png" }, "occurrence_count":1, "first_occurrence":21897572 } , "146397-21899040": { "datetime_modified":"20260310T103200", "datetime_start":"20260311T150000", "datetime_end":"20260311T160000", "has_end_time":1, "date_start":"2026-03-11", "date_end":"2026-03-11", "time_start":"15:00:00", "time_end":"16:00:00", "time_zone":"America\/Detroit", "event_title":"Keeping Children Safe on the Road: Emerging Evidence from Pregnancy to Adolescence", "occurrence_title":"", "combined_title":"Keeping Children Safe on the Road: Emerging Evidence from Pregnancy to Adolescence: Sjaan Koppel, PhD", "event_subtitle":"Sjaan Koppel, PhD", "event_type":"Lecture \/ Discussion", "event_type_id":"13", "description":"This presentation brings together two applied behavioural studies that sit at different points in the life course but share a common challenge: safety-critical behaviours often change when people move outside familiar contexts. 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Register with link at the right.", "occurrence_notes":null, "guid":"142813-21891697@events.umich.edu", "permalink":"http:\/\/events.umich.edu\/event\/142813", "building_id":"null", "building_name":"Off Campus Location", "campus_maps_id":"1", "room":"", "location_name":"Virtual", "has_livestream":0, "cost":"", "tags":["Transfer Student Center","Transfer Students"], "website":"https:\/\/events.blackthorn.io\/en\/Hn1RKit7\/g\/jTS9zH7yKM", "sponsors":[ { "group_name":"LSA Transfer Student Center", "group_id":"4442", "website":"" } ], "image_url":"https:\/\/events.umich.edu\/media\/attachments\/2025\/12\/event_142813_original-1.png", "styled_images":{ "event_thumb":"https:\/\/events.umich.edu\/media\/cache\/event_thumb\/media\/attachments\/2025\/12\/event_142813_original-1.png", "event_large":"https:\/\/events.umich.edu\/media\/cache\/event_large\/media\/attachments\/2025\/12\/event_142813_original-1.png", "event_large_2x":"https:\/\/events.umich.edu\/media\/cache\/event_large_2x\/media\/attachments\/2025\/12\/event_142813_original-1.png", "event_large_lightbox":"https:\/\/events.umich.edu\/media\/cache\/event_large_lightbox\/media\/attachments\/2025\/12\/event_142813_original-1.png", "group_thumb":"https:\/\/events.umich.edu\/media\/cache\/group_thumb\/media\/attachments\/2025\/12\/event_142813_original-1.png", "group_thumb_square":"https:\/\/events.umich.edu\/media\/cache\/group_thumb_square\/media\/attachments\/2025\/12\/event_142813_original-1.png", "group_large":"https:\/\/events.umich.edu\/media\/cache\/group_large\/media\/attachments\/2025\/12\/event_142813_original-1.png", "group_large_lightbox":"https:\/\/events.umich.edu\/media\/cache\/group_large_lightbox\/media\/attachments\/2025\/12\/event_142813_original-1.png", "event_large_crop":"https:\/\/events.umich.edu\/media\/cache\/event_large_crop\/media\/attachments\/2025\/12\/event_142813_original-1.png", "event_list":"https:\/\/events.umich.edu\/media\/cache\/event_list\/media\/attachments\/2025\/12\/event_142813_original-1.png", "event_list_2x":"https:\/\/events.umich.edu\/media\/cache\/event_list_2x\/media\/attachments\/2025\/12\/event_142813_original-1.png", "event_grid":"https:\/\/events.umich.edu\/media\/cache\/event_grid\/media\/attachments\/2025\/12\/event_142813_original-1.png", "event_grid_2x":"https:\/\/events.umich.edu\/media\/cache\/event_grid_2x\/media\/attachments\/2025\/12\/event_142813_original-1.png", "event_feature_large":"https:\/\/events.umich.edu\/media\/cache\/event_feature_large\/media\/attachments\/2025\/12\/event_142813_original-1.png", "event_feature_thumb":"https:\/\/events.umich.edu\/media\/cache\/event_feature_thumb\/media\/attachments\/2025\/12\/event_142813_original-1.png" }, "occurrence_count":14, "first_occurrence":21891696 } , "146311-21898866": { "datetime_modified":"20260308T193835", "datetime_start":"20260311T150000", "datetime_end":"20260311T160000", "has_end_time":1, "date_start":"2026-03-11", "date_end":"2026-03-11", "time_start":"15:00:00", "time_end":"16:00:00", "time_zone":"America\/Detroit", "event_title":"Symplectomorphisms of S\u00b2 \u00d7 S\u00b2", "occurrence_title":"", "combined_title":"Symplectomorphisms of S\u00b2 \u00d7 S\u00b2: Mohith Nagaraju", "event_subtitle":"Mohith Nagaraju", "event_type":"Workshop \/ Seminar", "event_type_id":"21", "description":"Unlike Riemannian geometry, symplectic topology is locally flexible; by Darboux's and Moser\u2019s theorems, it carries no local invariants. However, despite this local flexibility, Mikhail Gromov revealed global rigidity phenomena in 1985 by introducing the study of J-holomorphic curves in symplectic manifolds. In this talk, we will explore J-holomorphic curves in S\u00b2 \u00d7 S\u00b2 and see how they can be used to understand the topology of the group of symplectomorphisms.", "occurrence_notes":null, "guid":"146311-21898866@events.umich.edu", "permalink":"http:\/\/events.umich.edu\/event\/146311", "building_id":"1000166", "building_name":"East Hall", "campus_maps_id":"53", "room":"3866", "location_name":"East Hall", "has_livestream":0, "cost":"", "tags":["Mathematics"], "website":"", "sponsors":[ { "group_name":"Student Dynamics\/Geometry\/Topology Seminar - Department of Mathematics", "group_id":"4909", "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":21898866 } , "143087-21892042": { "datetime_modified":"20251223T103051", "datetime_start":"20260311T151000", "datetime_end":"20260311T161000", "has_end_time":1, "date_start":"2026-03-11", "date_end":"2026-03-11", "time_start":"15:10:00", "time_end":"16:10:00", "time_zone":"America\/Detroit", "event_title":"MIPSE Seminar | Pulser IFE: A Practical and Affordable Approach to Fusion Energy", "occurrence_title":"", "combined_title":"MIPSE Seminar | Pulser IFE: A Practical and Affordable Approach to Fusion Energy: Dr. Patrick Knapp, Pacific Fusion", "event_subtitle":"Dr. Patrick Knapp, Pacific Fusion", "event_type":"Lecture \/ Discussion", "event_type_id":"13", "description":"Abstract: \r\nThe Pacific Fusion Corporation, founded in 2023, is developing the targets and drivers needed to achieve high gain fusion for the first time in the laboratory and to simultaneously resolve significant hurdles to commercialization. We are building a 60-MA pulsed power driver based on the Impedance-matched Marx Generator (IMG) technology, a driver technology with unprecedented efficiency. Magnetically driven targets, coupled to such an efficient generator, provide flexibility in design, low risk scaling, and a mature physics foundation. We will discuss the theoretical foundations that underpin our approach to fusion energy. To support our target design objectives we are developing and using the FLASH code. We have extensively improved and validated FLASH to support our mission. Additionally, to support experiments on our facility we have designed a state of the art diagnostic suite to enable optical, x-ray, and nuclear measurements of burning plasmas in the ~100 MJ regime. Our diagnostics are based on a foundation of statistical inference, allowing us to motivate designs based on their ability to quantitatively constrain key performance metrics.\r\n\r\nAbout the Speaker: \r\nDr. Patrick Knapp is an experimental physicist and the experiments lead at the Pacific Fusion Corporation, where he leads the effort to develop experimental platforms and analysis tools in support of achieving facility gain and fusion energy on the grid with pulser fusion. He earned a BS in Electrical and Computer Engineering from Syracuse University in 2004, and the PhD in Electrical Engineering from Cornell University in 2011. Dr. Knapp dedicated eleven years as a staff member at Sandia National Laboratories, where he directed over 100 experiments on the Z machine. During his tenure, he was instrumental in developing multiple novel x-ray instruments, establishing the Magnetized Liner Inertial Fusion (MagLIF) platform, and creating a methodology to measure fuel magnetization utilizing secondary DT neutrons. Furthermore, he devised a novel Bayesian inference method to ascertain key performance metrics from MagLIF experiments. Prior to joining Pacific Fusion in July 2024, Dr. Knapp worked at Los Alamos National Laboratory, where he spearheaded the development of a Pulsed Power ICF program and applied Pulsed Power to critical stockpile stewardship challenges. His responsibilities at Pacific Fusion involve designing experiments aimed at derisking novel target technologies and generating validation data for the FLASH radiation-magnetohydrodynamics code. He also leads the development of post-processing and synthetic data pipelines, which are essential for the informed design and optimization of the diagnostic suite for the forthcoming facility gain Demonstration System.\r\n\r\nThis seminar is free and open to the public. 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Given an affine log Calabi-Yau variety U, we show that its special skeleton, namely the space of special valuations in the dual complex of U, is independent of the choice of its Fano compactifications. Consequently, the special skeleton of U is invariant under the action of Aut(U). As an example, when U is the complement of a Markov cubic surface in the affine three-space, we show that the action of three Vieta involutions on the special skeleton exhibits a surprising connection with dynamics on the hyperbolic plane.", "occurrence_notes":null, "guid":"143141-21892306@events.umich.edu", "permalink":"http:\/\/events.umich.edu\/event\/143141", "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":"Algebraic Geometry Seminar - Department of Mathematics", "group_id":"4880", "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":21892306 } }