{ "132725-21871643": { "datetime_modified":"20250213T083836", "datetime_start":"20250313T150000", "datetime_end":"20250313T160000", "has_end_time":1, "date_start":"2025-03-13", "date_end":"2025-03-13", "time_start":"15:00:00", "time_end":"16:00:00", "time_zone":"America\/Detroit", "event_title":"IOE 899 Seminar: John Urschel, MIT", "occurrence_title":"", "combined_title":"IOE 899 Seminar: John Urschel, MIT: Numerical Stability in Gaussian Elimination", "event_subtitle":"Numerical Stability in Gaussian Elimination", "event_type":"Workshop \/ Seminar", "event_type_id":"21", "description":"Join us on March 13 as our guest, John Urschel, gives his talk titled \"Numerical Stability in Gaussian Elimination.\"\r\n\r\nAbstract: The solution of a linear system, i.e., given a matrix A and vector b, finding a vector x satisfying Ax = b, is one of the oldest problems in mathematics. Gaussian elimination is one of the most fundamental and well-known techniques for solving linear systems, by factoring a matrix into the product of a lower and upper triangular matrix. Surprisingly, a number of questions regarding the numerical stability of this algorithm remains. In this talk, we will study the history of this subject, a story that spans over seventy-five years, and discuss some recent progress.\r\n\r\nBio: John Urschel is an Assistant Professor of Mathematics at MIT, and a Junior Fellow at the Harvard Society of Fellows. Previously, he was a member of the Institute for Advanced Study. He received his Ph.D. in Mathematics from MIT in 2021 under the supervision of Michel Goemans. His main research interests include matrix analysis, numerical linear algebra, and spectral graph theory. He recently received the SIAM DiPrima Prize for the most outstanding thesis in applied mathematics, and the SIAM Early Career Prize in Linear Algebra.\r\n\r\nThis event is part of our 899 seminar series.", "occurrence_notes":null, "guid":"132725-21871643@events.umich.edu", "permalink":"http:\/\/events.umich.edu\/event\/132725", "building_id":"1000397", "building_name":"Lurie Robert H. Engin. Ctr", "campus_maps_id":"90", "room":"Johnson rooms (3rd floor)", "location_name":"Lurie Robert H. Engin. 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Yours to read and keep! Featuring all female authors to celebrate Women\u2019s History Month.\r\n\r\nBooks will be restocked each day and available while supplies last.\r\n\r\nIn partnership with LSA Student Government\r\n\r\n__________\r\nFor LSA undergrads only. Join us for LSA@Play, a series of events to welcome and support LSA students! Gatherings and activities offer an opportunity for students to prioritize well-being, inclusivity, and community. Plus, get free food and LSA swag! Visit the LSA@Play webpage: lsa.umich.edu\/play for more details, subscribe to receive text\/email updates, and check for additional events being added soon! Events are first come, first served, and while supplies last. One swag item per student and you must be present with an MCard to receive.\r\n\r\nThe University of Michigan College of Literature, Science, and the Arts (LSA) greatly values inclusion and access for all. We are pleased to provide reasonable accommodations to enable your full participation in this event. Please email lsaatplay@umich.edu if you would like to request disability accommodations or have any questions or concerns. 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