{ "153328-21915643": { "datetime_modified":"20261005T192722", "datetime_start":"20261012T150000", "datetime_end":"20261012T160000", "has_end_time":1, "date_start":"2026-10-12", "date_end":"2026-10-12", "time_start":"15:00:00", "time_end":"16:00:00", "time_zone":"America\/Detroit", "event_title":"Math Grad Show and Tell Seminar: The Mathematics of Domino Tilings", "occurrence_title":"", "combined_title":"Math Grad Show and Tell Seminar: The Mathematics of Domino Tilings: Zach Deiman", "event_subtitle":"Zach Deiman", "event_type":"Workshop \/ Seminar", "event_type_id":"21", "description":"Suppose we have a region that is a bounded subset of the square grid (such as a finite union of squares on an infinite chessboard). Consider the problem of tiling this region with 1x2 and 2x1 dominoes. There are several questions that arise: \n\u2013 How can we tell whether such a region is tileable in the first place?\n\u2013 If such a region is tileable, then how many tilings exist?\n\u2013 What does a \"typical\" tiling look like?\nIn this talk, we will introduce several theorems that answer these questions, and explore basic examples that illustrate these results. We will also see how tilings of large Aztec diamonds can create some interesting surfaces!", "occurrence_notes":null, "guid":"153328-21915643@events.umich.edu", "permalink":"http:\/\/events.umich.edu\/event\/153328", "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":"Math Grad Show and Tell Seminar - Department of Mathematics", "group_id":"5515", "website":"" }, { "group_name":"Department of Mathematics", "group_id":"3791", "website":"" } ], "image_url":"https:\/\/events.umich.edu\/media\/attachments\/2026\/10\/event_153328_original-1.png", "styled_images":{ "event_thumb":"https:\/\/events.umich.edu\/media\/cache\/resolve\/event_thumb\/media\/attachments\/2026\/10\/event_153328_original-1.png", "event_large":"https:\/\/events.umich.edu\/media\/cache\/event_large\/media\/attachments\/2026\/10\/event_153328_original-1.png", "event_large_2x":"https:\/\/events.umich.edu\/media\/cache\/event_large_2x\/media\/attachments\/2026\/10\/event_153328_original-1.png", "event_large_lightbox":"https:\/\/events.umich.edu\/media\/cache\/event_large_lightbox\/media\/attachments\/2026\/10\/event_153328_original-1.png", "group_thumb":"https:\/\/events.umich.edu\/media\/cache\/resolve\/group_thumb\/media\/attachments\/2026\/10\/event_153328_original-1.png", "group_thumb_square":"https:\/\/events.umich.edu\/media\/cache\/resolve\/group_thumb_square\/media\/attachments\/2026\/10\/event_153328_original-1.png", "group_large":"https:\/\/events.umich.edu\/media\/cache\/resolve\/group_large\/media\/attachments\/2026\/10\/event_153328_original-1.png", "group_large_lightbox":"https:\/\/events.umich.edu\/media\/cache\/resolve\/group_large_lightbox\/media\/attachments\/2026\/10\/event_153328_original-1.png", "event_large_crop":"https:\/\/events.umich.edu\/media\/cache\/resolve\/event_large_crop\/media\/attachments\/2026\/10\/event_153328_original-1.png", "event_list":"https:\/\/events.umich.edu\/media\/cache\/resolve\/event_list\/media\/attachments\/2026\/10\/event_153328_original-1.png", "event_list_2x":"https:\/\/events.umich.edu\/media\/cache\/event_list_2x\/media\/attachments\/2026\/10\/event_153328_original-1.png", "event_grid":"https:\/\/events.umich.edu\/media\/cache\/event_grid\/media\/attachments\/2026\/10\/event_153328_original-1.png", "event_grid_2x":"https:\/\/events.umich.edu\/media\/cache\/resolve\/event_grid_2x\/media\/attachments\/2026\/10\/event_153328_original-1.png", "event_feature_large":"https:\/\/events.umich.edu\/media\/cache\/resolve\/event_feature_large\/media\/attachments\/2026\/10\/event_153328_original-1.png", "event_feature_thumb":"https:\/\/events.umich.edu\/media\/cache\/resolve\/event_feature_thumb\/media\/attachments\/2026\/10\/event_153328_original-1.png" }, "occurrence_count":1, "first_occurrence":21915643 } , "153068-21915035": { "datetime_modified":"20260929T160640", "datetime_start":"20261012T150000", "datetime_end":"20261012T160000", "has_end_time":1, "date_start":"2026-10-12", "date_end":"2026-10-12", "time_start":"15:00:00", "time_end":"16:00:00", "time_zone":"America\/Detroit", "event_title":"Securing the Vote: Technology, Evidence, and Trust in the 2026 Midterm Elections", "occurrence_title":"", "combined_title":"Securing the Vote: Technology, Evidence, and Trust in the 2026 Midterm Elections: SUMIT (Security at U-M in IT)", "event_subtitle":"SUMIT (Security at U-M in IT)", "event_type":"Lecture \/ Discussion", "event_type_id":"13", "description":"How secure are our elections, and how do we know?\n\nWith the November midterm elections approaching, join University of Michigan experts and election-security leaders for a timely, nonpartisan discussion about the systems, technologies, and safeguards that protect elections and help verify results.\n\nModerated by U-M Vice President for Information Technology and Chief Information Officer Ravi Pendse, the panel will feature J. Alex Halderman, the Bredt Family Professor of Engineering and an election-cybersecurity researcher; Walter Mebane, professor of political science and statistics and an expert in election forensics; and Mara Ostfeld, research associate professor of public policy and an expert in survey research and public opinion. Together, they will examine cybersecurity threats to election infrastructure, voting technology and verification, the role of audits and evidence in evaluating results, and the challenge of maintaining public confidence in a rapidly changing information environment. \n\nDesigned for a broad audience, the conversation will consider how experts identify genuine risks, evaluate claims, strengthen election resilience, and support transparency and trust.\n\nMonday, October 12, 2026 \u2022 3-4 p.m.\nUniversity Hall, Alexander G. Ruthven Building\n1109 Geddes Ave., Ann Arbor, MI 48109\n\nThe moderated panel will be followed by an audience question-and-answer period. \n\nThe event is open to U-M students, faculty, and staff. Seating is limited, and an RSVP is required. 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