{ "119982-21843897": { "datetime_modified":"20240324T220759", "datetime_start":"20240404T160000", "datetime_end":"20240404T170000", "has_end_time":1, "date_start":"2024-04-04", "date_end":"2024-04-04", "time_start":"16:00:00", "time_end":"17:00:00", "time_zone":"America\/Detroit", "event_title":"Differential Equations Seminar: Potential theory and Feynman diagrams in inverse problems", "occurrence_title":"", "combined_title":"Differential Equations Seminar: Potential theory and Feynman diagrams in inverse problems: Amir Vig (Michigan)", "event_subtitle":"Amir Vig (Michigan)", "event_type":"Workshop \/ Seminar", "event_type_id":"21", "description":"In 1966, Mark Kac posed the famous question \u201cCan you hear the shape of a drum?\u201d Mathematically, this amounts to recovering the geometry of a Riemannian manifold from knowledge of its Laplace spectrum. In the case of strictly convex and smooth bounded planar domains, the problem is very much open. One technique for studying the inverse spectral problem is via the wave trace, a distribution with singular support contained in the length spectrum. The length spectrum is the collection of lengths of closed geodesics, which for planar domains are just periodic billiard orbits. A dual object to study is the resolvent (of the Laplacian), whose trace asymptotics are related via the Payley-Wiener theorem to singularities of the wave trace. In this talk, we introduce the Balian-Bloch-Zelditch method of constructing a parametrix for the resolvent trace via layer potentials. The result is an oscillatory integral to which one can apply the method of stationary phase. A novel feature is the organization of stationary phase coefficients by using graph theory and Feynman diagrams. The resulting formulas can be used to match Maslov indices of orbits and produce cancellations in the wave trace, which shows that the length spectrum and the Laplace spectrum are inherently distinct objects, at least insofar as the wave trace is concerned.", "occurrence_notes":null, "guid":"119982-21843897@events.umich.edu", "permalink":"http:\/\/events.umich.edu\/event\/119982", "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":"Differential Equations Seminar - Department of Mathematics", "group_id":"4888", "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":21843897 } , "108410-21819552": { "datetime_modified":"20240109T155914", "datetime_start":"20240404T160000", "datetime_end":"20240404T180000", "has_end_time":1, "date_start":"2024-04-04", "date_end":"2024-04-04", "time_start":"16:00:00", "time_end":"18:00:00", "time_zone":"America\/Detroit", "event_title":"EIHS Lecture: Promissory Talk and the Limits of Historical Imagination", "occurrence_title":"", "combined_title":"EIHS Lecture: Promissory Talk and the Limits of Historical Imagination: Jolyon Baraka Thomas (University of Pennsylvania)", "event_subtitle":"Jolyon Baraka Thomas (University of Pennsylvania)", "event_type":"Lecture \/ Discussion", "event_type_id":"13", "description":"This lecture uses the concept of promissory talk to critically analyze one way of thinking \u201cagainst history.\u201d Promissory talk is a future-oriented version of counterfactual speculation. Rather than asking \u201cwhat if\u2026?\u201d questions of historical events when the outcomes are already known, promissory speech says \u201cif only\u2026 then\u2026\u201d as a way of linking present policy actions to anticipated future results. Drawing on examples from Japan and the United States, Professor Thomas will show how recent efforts to reframe children\u2019s historical consciousness reflect a dubious promissory premise: \u201cIf only the kids had more national pride, then all of our problems would be solved.\"\r\n\r\nJolyon Baraka Thomas is associate professor of religious studies at the University of Pennsylvania. He is the author of Faking Liberties: Religious Freedom in American-Occupied Japan (University of Chicago Press, 2019) and Drawing on Tradition: Manga, Anime, and Religion in Contemporary Japan (University of Hawaii Press, 2012). Thomas\u2019s current research projects include the monograph Difficult Subjects: Religion and the Politics of Public Education under the US-Japan Security Alliance, a co-authored book called Animating Action, and the co-edited New Nanzan Guide to Japanese Religions.\r\n\r\nThis event presented by the Eisenberg Institute for Historical Studies. It is made possible in part by a generous contribution from Kenneth and Frances Aftel Eisenberg.", "occurrence_notes":null, "guid":"108410-21819552@events.umich.edu", "permalink":"http:\/\/events.umich.edu\/event\/108410", "building_id":"1000152", "building_name":"Tisch Hall", "campus_maps_id":"541", "room":"1014", "location_name":"Tisch Hall", "has_livestream":0, "cost":"", "tags":["History"], "website":"", "sponsors":[ { "group_name":"Eisenberg Institute for Historical Studies", "group_id":"2935", "website":"http:\/\/www.lsa.umich.edu\/eihs\/" }, { "group_name":"Department of History", "group_id":"3470", "website":"" } ], "image_url":"https:\/\/events.umich.edu\/media\/attachments\/2023\/08\/event_108410_original-1.jpeg", "styled_images":{ "event_thumb":"https:\/\/events.umich.edu\/media\/cache\/event_thumb\/media\/attachments\/2023\/08\/crop-event_108410_original-1.jpeg", "event_large":"https:\/\/events.umich.edu\/media\/cache\/event_large\/media\/attachments\/2023\/08\/crop-event_108410_original-1.jpeg", "event_large_2x":"https:\/\/events.umich.edu\/media\/cache\/event_large_2x\/media\/attachments\/2023\/08\/crop-event_108410_original-1.jpeg", "event_large_lightbox":"https:\/\/events.umich.edu\/media\/cache\/event_large_lightbox\/media\/attachments\/2023\/08\/crop-event_108410_original-1.jpeg", "group_thumb":"https:\/\/events.umich.edu\/media\/cache\/group_thumb\/media\/attachments\/2023\/08\/crop-event_108410_original-1.jpeg", "group_thumb_square":"https:\/\/events.umich.edu\/media\/cache\/group_thumb_square\/media\/attachments\/2023\/08\/crop-event_108410_original-1.jpeg", "group_large":"https:\/\/events.umich.edu\/media\/cache\/group_large\/media\/attachments\/2023\/08\/crop-event_108410_original-1.jpeg", "group_large_lightbox":"https:\/\/events.umich.edu\/media\/cache\/group_large_lightbox\/media\/attachments\/2023\/08\/crop-event_108410_original-1.jpeg", "event_large_crop":"https:\/\/events.umich.edu\/media\/cache\/event_large_crop\/media\/attachments\/2023\/08\/crop-event_108410_original-1.jpeg", "event_list":"https:\/\/events.umich.edu\/media\/cache\/event_list\/media\/attachments\/2023\/08\/crop-event_108410_original-1.jpeg", "event_list_2x":"https:\/\/events.umich.edu\/media\/cache\/event_list_2x\/media\/attachments\/2023\/08\/crop-event_108410_original-1.jpeg", "event_grid":"https:\/\/events.umich.edu\/media\/cache\/event_grid\/media\/attachments\/2023\/08\/crop-event_108410_original-1.jpeg", "event_grid_2x":"https:\/\/events.umich.edu\/media\/cache\/event_grid_2x\/media\/attachments\/2023\/08\/crop-event_108410_original-1.jpeg", "event_feature_large":"https:\/\/events.umich.edu\/media\/cache\/event_feature_large\/media\/attachments\/2023\/08\/crop-event_108410_original-1.jpeg", "event_feature_thumb":"https:\/\/events.umich.edu\/media\/cache\/event_feature_thumb\/media\/attachments\/2023\/08\/crop-event_108410_original-1.jpeg" }, "occurrence_count":1, "first_occurrence":21819552 } , "119173-21842296": { "datetime_modified":"20240419T123119", "datetime_start":"20240404T160000", "datetime_end":"20240404T170000", "has_end_time":1, "date_start":"2024-04-04", "date_end":"2024-04-04", "time_start":"16:00:00", "time_end":"17:00:00", "time_zone":"America\/Detroit", "event_title":"Explore EA Virtual Series: Tips & Tricks for Interviewing", "occurrence_title":"", "combined_title":"Explore EA Virtual Series: Tips & Tricks for Interviewing", "event_subtitle":"", "event_type":"Careers \/ Jobs", "event_type_id":"2", "description":"This Spring, EisnerAmper presents a trio of enlightening virtual sessions that offer you a unique chance to connect with accounting professionals, delve into DEI initiatives, and explore career and internship opportunities with us.\n\n\ud83c\udf1f Session 3: Tips & Tricks for Interviewing\nApplying to jobs or internships? We\u2019ve got the tools to prepare you onthe do\u2019s and dont\u2019s of interviewing. Join us to learn directly from skilled professionals and ace your upcoming job interview! \n\n\ud83d\ude80 Key Takeaways:\n- Learn the crucial do's and don'ts of job interviews.\n- Gain insider tips and strategies to excel in your upcoming interviews.\n- Prepareto leave a lasting impression and stand out from the competition.\n\n\ud83d\udcc5Session Date & Time:\nThursday, April 4th at 4PM to 5PM (CT) \n\nJoin usfor this essential session to boost your interview skills and pave the way for your future career success.\n\n\ud83d\udccc Register Here!\nhttps:\/\/flows.beamery.com\/eisnerampercareers\/eisneramper-spring-virtual-series-tips-and-tricks-for-interviewing-tgrczmmqu\n\nWe look forward to helping you shine inyour next interview!\n\nBest regards,\nThe EisnerAmper Campus Recruitment Team", "occurrence_notes":null, "guid":"119173-21842296@events.umich.edu", "permalink":"http:\/\/events.umich.edu\/event\/119173", "building_id":"", "building_name":"", "campus_maps_id":"", "room":"", "location_name":"", "has_livestream":0, "cost":"", "tags":[], "website":"", "sponsors":[ { "group_name":"University Career Center UCC", "group_id":"1140", "website":"http:\/\/careercenter.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":1, "first_occurrence":21842296 } }