{ "129785-21864567": { "datetime_modified":"20250129T102451", "datetime_start":"20250129T160000", "datetime_end":"20250129T172000", "has_end_time":1, "date_start":"2025-01-29", "date_end":"2025-01-29", "time_start":"16:00:00", "time_end":"17:20:00", "time_zone":"America\/Detroit", "event_title":"RTG Geometry, Topology, Dynamics: Minimal submanifolds, higher expanders, and waists of locally symmetric spaces I", "occurrence_title":"", "combined_title":"RTG Geometry, Topology, Dynamics: Minimal submanifolds, higher expanders, and waists of locally symmetric spaces I: Ben Lowe (U Chicago)", "event_subtitle":"Ben Lowe (U Chicago)", "event_type":"Workshop \/ Seminar", "event_type_id":"21", "description":"Gromov initiated a program to prove statements of the following form: Suppose we are given two simplicial complexes X and Y, where X is \u201ccomplicated\u201d and Y is lower dimensional. Then any map f: X-> Y must have at least one \"complicated\u201d fiber. In this talk I will describe various results of this kind for compact locally symmetric spaces, that are proved by bringing new tools into the picture from minimal surface theory and representation theory. Much of the talk will be focused on octonionic hyperbolic manifolds, the case where our approach seems to work best. If time permits I will also discuss some applications to systolic geometry, global fixed point theorems for actions of higher rank lattices on contractible CAT(0) simplicial complexes, and\/or a connection to recent work by Connell-McReynolds-Wang involving homology vanishing theorems for infinite covolume discrete subgroups of SL(n,R). Based on joint work with Mikolaj Fraczyk. \r\n\r\nIn the first talk I will focus on giving background on Gromov's program for proving waist inequalities, and the necessary ingredients from representation theory and the theory of minimal submanifolds. The second talk will not assume that you went to the first talk.", "occurrence_notes":null, "guid":"129785-21864567@events.umich.edu", "permalink":"http:\/\/events.umich.edu\/event\/129785", "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":"Geometry Seminar - Department of Mathematics", "group_id":"4891", "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":21864567 } , "130434-21866017": { "datetime_modified":"20250104T121109", "datetime_start":"20250129T160000", "datetime_end":"20250129T170000", "has_end_time":1, "date_start":"2025-01-29", "date_end":"2025-01-29", "time_start":"16:00:00", "time_end":"17:00:00", "time_zone":"America\/Detroit", "event_title":"Sequential contracting in continuous time", "occurrence_title":"", "combined_title":"Sequential contracting in continuous time: Liwei Huang", "event_subtitle":"Liwei Huang", "event_type":"Workshop \/ Seminar", "event_type_id":"21", "description":"In this presentation, I will address a continuous-time principal-agent problem featuring multiple lump-sum payments (contracts) scheduled at predetermined times. Using the methodology introduced by Cvitani\u0107, Possama\u00ef, and Touzi, we reformulate the non-zero-sum Stackelberg game between the principal and the agent as a standard stochastic optimal control problem. We establish that the principal's value function is the unique viscosity solution of sequential constrained Hamilton-Jacobi-Bellman (HJB) equations. Subsequently, we apply this framework to a benchmark model to investigate the impact of various factors, such as payment frequency, payment distribution, discount rates, and the agent's reservation utility, on the principal's value. This work is a collaboration with Guillermo Alvarez, Erhan Bayraktar, and Ibrahim Ekren.", "occurrence_notes":null, "guid":"130434-21866017@events.umich.edu", "permalink":"http:\/\/events.umich.edu\/event\/130434", "building_id":"1000166", "building_name":"East Hall", "campus_maps_id":"53", "room":"1360", "location_name":"East Hall", "has_livestream":0, "cost":"", "tags":["Mathematics"], "website":"", "sponsors":[ { "group_name":"Financial\/Actuarial Mathematics Seminar - Department of Mathematics", "group_id":"4890", "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":21866017 } , "131411-21868444": { "datetime_modified":"20250122T230511", "datetime_start":"20250129T160000", "datetime_end":"20250129T170000", "has_end_time":1, "date_start":"2025-01-29", "date_end":"2025-01-29", "time_start":"16:00:00", "time_end":"17:00:00", "time_zone":"America\/Detroit", "event_title":"Student AIM Seminar: Water in a pipe: simulating flow in periodic geometry + Casual Networking Mixer", "occurrence_title":"", "combined_title":"Student AIM Seminar: Water in a pipe: simulating flow in periodic geometry + Casual Networking Mixer: Choco Li", "event_subtitle":"Choco Li", "event_type":"Workshop \/ Seminar", "event_type_id":"21", "description":"Periodic domains with circular cross sections are common in biophysical simulations. Applications include cell transport through blood vessels, flow past porous media, optimize drug delivery, and many more. Boundary integral equation (BIE) methods are a strong and active field of research for this kind of simulation due to its dimension reduction. In this talk we cover efforts to speed up the BIE method when the domain is periodic and contained in an axisymmetric structure (water in a pipe). We also cover special quadratures to address the singularities arising from this method.\r\n\r\nCasual Networking Mixer:\r\nGraduate students, postdocs, and faculty, especially those working in Applied Math are invited to a casual networking mixer after the talk. Foods and drinks will be provided.", "occurrence_notes":null, "guid":"131411-21868444@events.umich.edu", "permalink":"http:\/\/events.umich.edu\/event\/131411", "building_id":"1000166", "building_name":"East Hall", "campus_maps_id":"53", "room":"3088", "location_name":"East Hall", "has_livestream":0, "cost":"", "tags":["Mathematics","Applied Mathematics"], "website":"https:\/\/sites.google.com\/umich.edu\/umich-siamstudentchapter\/home", "sponsors":[ { "group_name":"Student AIM Seminar - Department of Mathematics", "group_id":"4902", "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":21868444 } , "131038-21867640": { "datetime_modified":"20250113T101252", "datetime_start":"20250129T160000", "datetime_end":"20250129T173000", "has_end_time":1, "date_start":"2025-01-29", "date_end":"2025-01-29", "time_start":"16:00:00", "time_end":"17:30:00", "time_zone":"America\/Detroit", "event_title":"Teaching Diversity in Divisive Times", "occurrence_title":"", "combined_title":"Teaching Diversity in Divisive Times: Department of American Culture Professors Panel", "event_subtitle":"Department of American Culture Professors Panel", "event_type":"Lecture \/ Discussion", "event_type_id":"13", "description":"As educators, we are tasked with guiding students in developing specific skills to aid them in reimagining their role as citizens concerned with social justice and individual growth. As the country and its democratic institutions face tumultuous change, the American university faces a variety of challenges to humanities and liberal arts education\u2013including our own campus responses to national discussions around diversity, equity and inclusion. Join professors from the Department of American Culture to discuss challenges, goals and methods to consider as we work to stay consistent in our pursuit to ensure that diversity, equity, and inclusion continue to be effective tools we use to build pedagogies for all student's academic success.", "occurrence_notes":null, "guid":"131038-21867640@events.umich.edu", "permalink":"http:\/\/events.umich.edu\/event\/131038", "building_id":"1000175", "building_name":"Haven Hall", "campus_maps_id":"542", "room":"3512", "location_name":"Haven Hall", "has_livestream":0, "cost":"", "tags":["Arab And Muslim American Studies","Amas","Native American Studies","latino\/a studies","Asian\/pacific Islander American Studies","american culture"], "website":"", "sponsors":[ { "group_name":"Department of American Culture", "group_id":"3309", "website":"http:\/\/lsa.umich.edu\/ac" }, { "group_name":"Arab and Muslim American Studies (AMAS)", "group_id":"3630", "website":"" }, { "group_name":"Asian\/Pacific Islander American Studies", "group_id":"3631", "website":"" }, { "group_name":"Latina\/o Studies", "group_id":"3632", "website":"" }, { "group_name":"Native American Studies", "group_id":"3633", "website":"" } ], "image_url":"https:\/\/events.umich.edu\/media\/attachments\/2025\/01\/event_131038_original-2.jpeg", "styled_images":{ "event_thumb":"https:\/\/events.umich.edu\/media\/cache\/resolve\/event_thumb\/media\/attachments\/2025\/01\/crop-event_131038_original-2.jpeg", "event_large":"https:\/\/events.umich.edu\/media\/cache\/resolve\/event_large\/media\/attachments\/2025\/01\/crop-event_131038_original-2.jpeg", "event_large_2x":"https:\/\/events.umich.edu\/media\/cache\/event_large_2x\/media\/attachments\/2025\/01\/crop-event_131038_original-2.jpeg", "event_large_lightbox":"https:\/\/events.umich.edu\/media\/cache\/event_large_lightbox\/media\/attachments\/2025\/01\/crop-event_131038_original-2.jpeg", "group_thumb":"https:\/\/events.umich.edu\/media\/cache\/resolve\/group_thumb\/media\/attachments\/2025\/01\/crop-event_131038_original-2.jpeg", "group_thumb_square":"https:\/\/events.umich.edu\/media\/cache\/resolve\/group_thumb_square\/media\/attachments\/2025\/01\/crop-event_131038_original-2.jpeg", "group_large":"https:\/\/events.umich.edu\/media\/cache\/resolve\/group_large\/media\/attachments\/2025\/01\/crop-event_131038_original-2.jpeg", "group_large_lightbox":"https:\/\/events.umich.edu\/media\/cache\/resolve\/group_large_lightbox\/media\/attachments\/2025\/01\/crop-event_131038_original-2.jpeg", "event_large_crop":"https:\/\/events.umich.edu\/media\/cache\/resolve\/event_large_crop\/media\/attachments\/2025\/01\/crop-event_131038_original-2.jpeg", "event_list":"https:\/\/events.umich.edu\/media\/cache\/resolve\/event_list\/media\/attachments\/2025\/01\/crop-event_131038_original-2.jpeg", "event_list_2x":"https:\/\/events.umich.edu\/media\/cache\/event_list_2x\/media\/attachments\/2025\/01\/crop-event_131038_original-2.jpeg", "event_grid":"https:\/\/events.umich.edu\/media\/cache\/event_grid\/media\/attachments\/2025\/01\/crop-event_131038_original-2.jpeg", "event_grid_2x":"https:\/\/events.umich.edu\/media\/cache\/event_grid_2x\/media\/attachments\/2025\/01\/crop-event_131038_original-2.jpeg", "event_feature_large":"https:\/\/events.umich.edu\/media\/cache\/resolve\/event_feature_large\/media\/attachments\/2025\/01\/crop-event_131038_original-2.jpeg", "event_feature_thumb":"https:\/\/events.umich.edu\/media\/cache\/event_feature_thumb\/media\/attachments\/2025\/01\/crop-event_131038_original-2.jpeg" }, "occurrence_count":1, "first_occurrence":21867640 } , "130168-21865553": { "datetime_modified":"20241219T121636", "datetime_start":"20250129T163000", "datetime_end":"20250129T183000", "has_end_time":1, "date_start":"2025-01-29", "date_end":"2025-01-29", "time_start":"16:30:00", "time_end":"18:30:00", "time_zone":"America\/Detroit", "event_title":"Voice & Opera Studio Recital", "occurrence_title":"", "combined_title":"Voice & Opera Studio Recital", "event_subtitle":"", "event_type":"Performance", "event_type_id":"15", "description":"Students from the Department of Voice & Opera perform a recital.", "occurrence_notes":null, "guid":"130168-21865553@events.umich.edu", "permalink":"http:\/\/events.umich.edu\/event\/130168", "building_id":"1000440", "building_name":"Earl V. Moore Building", "campus_maps_id":"52", "room":"Britton Recital Hall", "location_name":"Earl V. Moore Building", "has_livestream":0, "cost":"Free - no tickets required", "tags":["North Campus","Music","Free"], "website":"", "sponsors":[ { "group_name":"School of Music, Theatre & Dance (SMTD)", "group_id":"155", "website":"http:\/\/smtd.umich.edu\/events" } ], "image_url":"https:\/\/events.umich.edu\/media\/attachments\/2024\/12\/event_130168_original-1.jpg", "styled_images":{ "event_thumb":"https:\/\/events.umich.edu\/media\/cache\/resolve\/event_thumb\/media\/attachments\/2024\/12\/event_130168_original-1.jpg", "event_large":"https:\/\/events.umich.edu\/media\/cache\/event_large\/media\/attachments\/2024\/12\/event_130168_original-1.jpg", "event_large_2x":"https:\/\/events.umich.edu\/media\/cache\/resolve\/event_large_2x\/media\/attachments\/2024\/12\/event_130168_original-1.jpg", "event_large_lightbox":"https:\/\/events.umich.edu\/media\/cache\/event_large_lightbox\/media\/attachments\/2024\/12\/event_130168_original-1.jpg", "group_thumb":"https:\/\/events.umich.edu\/media\/cache\/resolve\/group_thumb\/media\/attachments\/2024\/12\/event_130168_original-1.jpg", "group_thumb_square":"https:\/\/events.umich.edu\/media\/cache\/resolve\/group_thumb_square\/media\/attachments\/2024\/12\/event_130168_original-1.jpg", "group_large":"https:\/\/events.umich.edu\/media\/cache\/resolve\/group_large\/media\/attachments\/2024\/12\/event_130168_original-1.jpg", "group_large_lightbox":"https:\/\/events.umich.edu\/media\/cache\/resolve\/group_large_lightbox\/media\/attachments\/2024\/12\/event_130168_original-1.jpg", "event_large_crop":"https:\/\/events.umich.edu\/media\/cache\/resolve\/event_large_crop\/media\/attachments\/2024\/12\/event_130168_original-1.jpg", "event_list":"https:\/\/events.umich.edu\/media\/cache\/resolve\/event_list\/media\/attachments\/2024\/12\/event_130168_original-1.jpg", "event_list_2x":"https:\/\/events.umich.edu\/media\/cache\/event_list_2x\/media\/attachments\/2024\/12\/event_130168_original-1.jpg", "event_grid":"https:\/\/events.umich.edu\/media\/cache\/event_grid\/media\/attachments\/2024\/12\/event_130168_original-1.jpg", "event_grid_2x":"https:\/\/events.umich.edu\/media\/cache\/resolve\/event_grid_2x\/media\/attachments\/2024\/12\/event_130168_original-1.jpg", "event_feature_large":"https:\/\/events.umich.edu\/media\/cache\/resolve\/event_feature_large\/media\/attachments\/2024\/12\/event_130168_original-1.jpg", "event_feature_thumb":"https:\/\/events.umich.edu\/media\/cache\/resolve\/event_feature_thumb\/media\/attachments\/2024\/12\/event_130168_original-1.jpg" }, "occurrence_count":1, "first_occurrence":21865553 } }