{ "148195-21903219": { "datetime_modified":"20260508T145250", "datetime_start":"20260521T140000", "datetime_end":"20260521T160000", "has_end_time":1, "date_start":"2026-05-21", "date_end":"2026-05-21", "time_start":"14:00:00", "time_end":"16:00:00", "time_zone":"America\/Detroit", "event_title":"Mixing at Double Exponential Rate and Rigidity in Analytic Dynamics", "occurrence_title":"", "combined_title":"Mixing at Double Exponential Rate and Rigidity in Analytic Dynamics: Katia Shchetka", "event_subtitle":"Katia Shchetka", "event_type":"Presentation", "event_type_id":"16", "description":"Abstract:\n\nThis work studies mixing in dynamical systems, focusing on how fast correlations between observables decay. While most previously studied systems have polynomial or exponential rates, we investigate systems with double exponential decay.\n\nWe show that all ergodic surjective linear endomorphisms of tori mix at a double exponential rate for analytic observables. In dimension one, we provide a complete classification for finite Blaschke products on the circle: the rate of mixing (no mixing, exponential, or double exponential) is determined by the value of the derivative of the Blaschke product at its fixed point. We extend the result to free semigroup actions generated by Blaschke products.\n\nWe also show that double exponential mixing is not rigid: it is not stable under perturbations and does not imply conjugacy to linear models. In higher dimensions, we construct families of examples of nonlinear maps with and without double exponential rate of mixing, and prove that certain partially hyperbolic systems never have this property.\n\nOur approach uses the Koopman precomposition operator acting on spaces of hyperfunctions (the dual space of analytic functions). In this setting, the operator is non-self-adjoint, compact, and quasi-nilpotent, with its spectrum reduced to zero, which can be considered an indicator of double exponential decay.\n\nFinally, we apply mixing rates to the cohomological equation. We prove the analyticity of solutions under suitable conditions and establish existence and uniqueness results in anisotropic spaces.", "occurrence_notes":null, "guid":"148195-21903219@events.umich.edu", "permalink":"http:\/\/events.umich.edu\/event\/148195", "building_id":"1000166", "building_name":"East Hall", "campus_maps_id":"53", "room":"3096", "location_name":"East Hall", "has_livestream":0, "cost":"", "tags":["Mathematics","Graduate Students","Graduate","Dissertation"], "website":"", "sponsors":[ { "group_name":"Dissertation Defense - Department of Mathematics", "group_id":"4889", "website":"" }, { "group_name":"Department of Mathematics", "group_id":"3791", "website":"" } ], "image_url":"https:\/\/events.umich.edu\/media\/attachments\/2026\/05\/event_148195_original-1.jpg", "styled_images":{ "event_thumb":"https:\/\/events.umich.edu\/media\/cache\/event_thumb\/media\/attachments\/2026\/05\/event_148195_original-1.jpg", "event_large":"https:\/\/events.umich.edu\/media\/cache\/event_large\/media\/attachments\/2026\/05\/event_148195_original-1.jpg", "event_large_2x":"https:\/\/events.umich.edu\/media\/cache\/event_large_2x\/media\/attachments\/2026\/05\/event_148195_original-1.jpg", "event_large_lightbox":"https:\/\/events.umich.edu\/media\/cache\/event_large_lightbox\/media\/attachments\/2026\/05\/event_148195_original-1.jpg", "group_thumb":"https:\/\/events.umich.edu\/media\/cache\/resolve\/group_thumb\/media\/attachments\/2026\/05\/event_148195_original-1.jpg", "group_thumb_square":"https:\/\/events.umich.edu\/media\/cache\/resolve\/group_thumb_square\/media\/attachments\/2026\/05\/event_148195_original-1.jpg", "group_large":"https:\/\/events.umich.edu\/media\/cache\/resolve\/group_large\/media\/attachments\/2026\/05\/event_148195_original-1.jpg", "group_large_lightbox":"https:\/\/events.umich.edu\/media\/cache\/resolve\/group_large_lightbox\/media\/attachments\/2026\/05\/event_148195_original-1.jpg", "event_large_crop":"https:\/\/events.umich.edu\/media\/cache\/resolve\/event_large_crop\/media\/attachments\/2026\/05\/event_148195_original-1.jpg", "event_list":"https:\/\/events.umich.edu\/media\/cache\/resolve\/event_list\/media\/attachments\/2026\/05\/event_148195_original-1.jpg", "event_list_2x":"https:\/\/events.umich.edu\/media\/cache\/event_list_2x\/media\/attachments\/2026\/05\/event_148195_original-1.jpg", "event_grid":"https:\/\/events.umich.edu\/media\/cache\/event_grid\/media\/attachments\/2026\/05\/event_148195_original-1.jpg", "event_grid_2x":"https:\/\/events.umich.edu\/media\/cache\/resolve\/event_grid_2x\/media\/attachments\/2026\/05\/event_148195_original-1.jpg", "event_feature_large":"https:\/\/events.umich.edu\/media\/cache\/resolve\/event_feature_large\/media\/attachments\/2026\/05\/event_148195_original-1.jpg", "event_feature_thumb":"https:\/\/events.umich.edu\/media\/cache\/resolve\/event_feature_thumb\/media\/attachments\/2026\/05\/event_148195_original-1.jpg" }, "occurrence_count":1, "first_occurrence":21903219 } , "147512-21901166": { "datetime_modified":"20260407T171647", "datetime_start":"20260521T153000", "datetime_end":"20260521T163000", "has_end_time":1, "date_start":"2026-05-21", "date_end":"2026-05-21", "time_start":"15:30:00", "time_end":"16:30:00", "time_zone":"America\/Detroit", "event_title":"James and Judith Street Professor of Chemical Engineering - Delia Milliron", "occurrence_title":"", "combined_title":"James and Judith Street Professor of Chemical Engineering - Delia Milliron", "event_subtitle":"", "event_type":"Other", "event_type_id":"22", "description":"Delia Milliron received her AB from Princeton University (1999) and her PhD from the University of California, Berkeley (2004), both in Chemistry. While at Princeton, she also completed a Certificate in Materials Science and Engineering. She initially worked for IBM\u2019s research division, first as a postdoc at the T.J. Watson Research Center and then as a Research Staff Member at the Almaden Research Center. In 2008, she joined the research staff at the Molecular Foundry, Lawrence Berkeley National Lab, where she led the Inorganic Nanostructures Facility and later served as the Deputy Director. In 2013, she began her academic career as an Associate Professor of Chemical Engineering at the University of Texas at Austin, where she ultimately served as Department Chair and was appointed as the Ernest Cockrell, Sr. Chair #1 in Engineering before moving to the University of Michigan in 2025 to become the Anthony C. Lembke Department Chair of Chemical Engineering. She is jointly appointed as a Professor of Chemistry.\n\nMilliron develops materials based on metal oxide nanocrystals, tuning their composition and structure to control visible and infrared light and to guide electrochemical reactions. The nanocrystals' size-dependent properties offer new opportunities for optoelectronics and clean energy technologies. Her work has resulted in over 200 peer-reviewed publications and 20 issued US patents and led to her co-founding two venture-backed spin-off companies.\n\nMilliron's research has been recognized with awards including the DOE Early Career Research Program, the Sloan Research Fellowship, the American Chemical Society's (ACS) Inorganic Nanoscience Award, Senior Membership in the National Academy of Inventors, the Norman Hackerman Award from the Welch Foundation, the O\u2019Donnell Award in Engineering from the Texas Academy of Medicine, Engineering, Science & Technology, the Nanoscale Science and Engineering Forum Award from the American Institute of Chemical Engineers (AIChE), and the Materials Research Society's MRS Medal.\n\n\n\nTHE JAMES AND JUDITH STREET PROFESSORSHIP\n\nThis Endowed professorship was made possible through the generosity of James R. and Judith W. Street. Dr. Street is a retired executive of the Shell Oil Company and the Royal Dutch Group. In 1987, he was elected president of Shell Development Company with responsibility for Shell's entire research and development portfolio. He also served as president of Shell Chemical Company, leading a successful turnaround effort. In 1991, he served as chief technology officer of the Royal Dutch\/Shell Group of companies located in London, England. He earned three \nchemical engineering degrees and a math degree from the University of Michigan. In 2007, Dr. Street was awarded the Department of Chemical Engineering Alumni Society Merit Award.\n\nThe James and Judith Street Professorship in Chemical Engineering was established in 2008 by a gift of $1.5M to establish and support an endowed professorship. The holder will be a professor in the department of Chemical Engineering who will be appointed to the professorship for five-year, renewable terms. \n\nENDOWED PROFESSORSHIPS\nEndowed professorships at Michigan Engineering are essential to the University of Michigan. They provide resources to attract, reward and retain outstanding faculty in all areas of engineering. Appointment to an endowed professorship is reserved for a scholar of national and often international stature who has earned a highly distinguished record of teaching, research and publishing.\n\nThese professorships, funded and named by donors, bring prestige and recognition to leading members of our faculty and reward their contributions to the institution and to the field. Equally important, endowed professorships attract new teaching and research talent from outside the University and continue in perpetuity to enrich the community of scholars at Michigan.", "occurrence_notes":null, "guid":"147512-21901166@events.umich.edu", "permalink":"http:\/\/events.umich.edu\/event\/147512", "building_id":"1000397", "building_name":"Lurie Robert H. Engin. Ctr", "campus_maps_id":"90", "room":"Johnson Rooms", "location_name":"Lurie Robert H. Engin. Ctr", "has_livestream":0, "cost":"", "tags":["chemical engineering","Professorship"], "website":"http:\/\/che.engin.umich.edu\/", "sponsors":[ { "group_name":"Chemical Engineering", "group_id":"3218", "website":"http:\/\/che.engin.umich.edu\/" } ], "image_url":"https:\/\/events.umich.edu\/media\/attachments\/2026\/04\/event_147512_original-1.jpg", "styled_images":{ "event_thumb":"https:\/\/events.umich.edu\/media\/cache\/resolve\/event_thumb\/media\/attachments\/2026\/04\/event_147512_original-1.jpg", "event_large":"https:\/\/events.umich.edu\/media\/cache\/event_large\/media\/attachments\/2026\/04\/event_147512_original-1.jpg", "event_large_2x":"https:\/\/events.umich.edu\/media\/cache\/resolve\/event_large_2x\/media\/attachments\/2026\/04\/event_147512_original-1.jpg", "event_large_lightbox":"https:\/\/events.umich.edu\/media\/cache\/event_large_lightbox\/media\/attachments\/2026\/04\/event_147512_original-1.jpg", "group_thumb":"https:\/\/events.umich.edu\/media\/cache\/resolve\/group_thumb\/media\/attachments\/2026\/04\/event_147512_original-1.jpg", "group_thumb_square":"https:\/\/events.umich.edu\/media\/cache\/resolve\/group_thumb_square\/media\/attachments\/2026\/04\/event_147512_original-1.jpg", "group_large":"https:\/\/events.umich.edu\/media\/cache\/resolve\/group_large\/media\/attachments\/2026\/04\/event_147512_original-1.jpg", "group_large_lightbox":"https:\/\/events.umich.edu\/media\/cache\/resolve\/group_large_lightbox\/media\/attachments\/2026\/04\/event_147512_original-1.jpg", "event_large_crop":"https:\/\/events.umich.edu\/media\/cache\/resolve\/event_large_crop\/media\/attachments\/2026\/04\/event_147512_original-1.jpg", "event_list":"https:\/\/events.umich.edu\/media\/cache\/resolve\/event_list\/media\/attachments\/2026\/04\/event_147512_original-1.jpg", "event_list_2x":"https:\/\/events.umich.edu\/media\/cache\/event_list_2x\/media\/attachments\/2026\/04\/event_147512_original-1.jpg", "event_grid":"https:\/\/events.umich.edu\/media\/cache\/event_grid\/media\/attachments\/2026\/04\/event_147512_original-1.jpg", "event_grid_2x":"https:\/\/events.umich.edu\/media\/cache\/resolve\/event_grid_2x\/media\/attachments\/2026\/04\/event_147512_original-1.jpg", "event_feature_large":"https:\/\/events.umich.edu\/media\/cache\/resolve\/event_feature_large\/media\/attachments\/2026\/04\/event_147512_original-1.jpg", "event_feature_thumb":"https:\/\/events.umich.edu\/media\/cache\/resolve\/event_feature_thumb\/media\/attachments\/2026\/04\/event_147512_original-1.jpg" }, "occurrence_count":1, "first_occurrence":21901166 } , "147869-21902093": { "datetime_modified":"20260420T122132", "datetime_start":"20260521T160000", "datetime_end":"20260521T193000", "has_end_time":1, "date_start":"2026-05-21", "date_end":"2026-05-21", "time_start":"16:00:00", "time_end":"19:30:00", "time_zone":"America\/Detroit", "event_title":"Third Thursday | Late Night at the Kelsey!", "occurrence_title":"", "combined_title":"Third Thursday | Late Night at the Kelsey!", "event_subtitle":"", "event_type":"Other", "event_type_id":"22", "description":"The Kelsey Museum is open late! On the third Thursday of each month, the Kelsey will be open from 4:00 to 7:30 PM. Come check out the galleries after work, after school, or after dinner downtown.\n\nThis event is free and open to all visitors. If you have any questions or concerns regarding accessing this event, please visit our accessibility page at https:\/\/myumi.ch\/zwPkd or contact the education office by calling (734) 647-4167. We ask for advance notice as some accommodations may require more time for the university to arrange.", "occurrence_notes":null, "guid":"147869-21902093@events.umich.edu", "permalink":"http:\/\/events.umich.edu\/event\/147869", "building_id":"1000178", "building_name":"Kelsey Museum of Archaeology", "campus_maps_id":"186", "room":"", "location_name":"Kelsey Museum of Archaeology", "has_livestream":0, "cost":"", "tags":["Museum","Free","Archaeology","Ancient Rome","Ancient Middle East","Ancient Greece","Ancient Egypt"], "website":"https:\/\/lsa.umich.edu\/kelsey\/news-events\/all-events.html", "sponsors":[ { "group_name":"Kelsey Museum of Archaeology", "group_id":"3154", "website":"http:\/\/www.lsa.umich.edu\/kelsey\/" }, { "group_name":"Archaeology at Michigan", "group_id":"5160", "website":"" } ], "image_url":"https:\/\/events.umich.edu\/media\/attachments\/2026\/04\/event_147869_original-1.jpg", "styled_images":{ "event_thumb":"https:\/\/events.umich.edu\/media\/cache\/resolve\/event_thumb\/media\/attachments\/2026\/04\/event_147869_original-1.jpg", "event_large":"https:\/\/events.umich.edu\/media\/cache\/event_large\/media\/attachments\/2026\/04\/event_147869_original-1.jpg", "event_large_2x":"https:\/\/events.umich.edu\/media\/cache\/event_large_2x\/media\/attachments\/2026\/04\/event_147869_original-1.jpg", "event_large_lightbox":"https:\/\/events.umich.edu\/media\/cache\/event_large_lightbox\/media\/attachments\/2026\/04\/event_147869_original-1.jpg", "group_thumb":"https:\/\/events.umich.edu\/media\/cache\/resolve\/group_thumb\/media\/attachments\/2026\/04\/event_147869_original-1.jpg", "group_thumb_square":"https:\/\/events.umich.edu\/media\/cache\/resolve\/group_thumb_square\/media\/attachments\/2026\/04\/event_147869_original-1.jpg", "group_large":"https:\/\/events.umich.edu\/media\/cache\/resolve\/group_large\/media\/attachments\/2026\/04\/event_147869_original-1.jpg", "group_large_lightbox":"https:\/\/events.umich.edu\/media\/cache\/resolve\/group_large_lightbox\/media\/attachments\/2026\/04\/event_147869_original-1.jpg", "event_large_crop":"https:\/\/events.umich.edu\/media\/cache\/resolve\/event_large_crop\/media\/attachments\/2026\/04\/event_147869_original-1.jpg", "event_list":"https:\/\/events.umich.edu\/media\/cache\/event_list\/media\/attachments\/2026\/04\/event_147869_original-1.jpg", "event_list_2x":"https:\/\/events.umich.edu\/media\/cache\/event_list_2x\/media\/attachments\/2026\/04\/event_147869_original-1.jpg", "event_grid":"https:\/\/events.umich.edu\/media\/cache\/event_grid\/media\/attachments\/2026\/04\/event_147869_original-1.jpg", "event_grid_2x":"https:\/\/events.umich.edu\/media\/cache\/resolve\/event_grid_2x\/media\/attachments\/2026\/04\/event_147869_original-1.jpg", "event_feature_large":"https:\/\/events.umich.edu\/media\/cache\/resolve\/event_feature_large\/media\/attachments\/2026\/04\/event_147869_original-1.jpg", "event_feature_thumb":"https:\/\/events.umich.edu\/media\/cache\/event_feature_thumb\/media\/attachments\/2026\/04\/event_147869_original-1.jpg" }, "occurrence_count":4, "first_occurrence":21902093 } , "145688-21897698": { "datetime_modified":"20260521T153920", "datetime_start":"20260521T180000", "datetime_end":"20260521T190000", "has_end_time":1, "date_start":"2026-05-21", "date_end":"2026-05-21", "time_start":"18:00:00", "time_end":"19:00:00", "time_zone":"America\/Detroit", "event_title":"Caswell Diabetes Institute Community Seminar Series", "occurrence_title":"", "combined_title":"Caswell Diabetes Institute Community Seminar Series: Eat Well, Live Well - Exploring Nutrition for Whole Body Health", "event_subtitle":"Eat Well, Live Well - Exploring Nutrition for Whole Body Health", "event_type":"Workshop \/ Seminar", "event_type_id":"21", "description":"Bad Things in Good Foods\nDid you know that some of the foods we eat every day\u2014 fruits, vegetables, and even so-called \u201chealth foods\u201d\u2014 can contain invisible chemicals and toxic substances? Learn how these \u201cbad things in good foods\u201d may influence how our bodies grow, develop, and maintain heart and metabolic health. We will examine the surprising connections between what\u2019s on our plate and long-term risks for conditions like diabetes and heart disease.\n\nKaren E. Peterson, ScD\nStanley M. Garn Collegiate Professor and Chair, Department of Nutritional Sciences; \nAssociate Director, Michigan Nutrition Obesity Research Center; \nProfessor of Global Public Health and Environmental Health Sciences, University of Michigan School of Public Health", "occurrence_notes":null, "guid":"145688-21897698@events.umich.edu", "permalink":"http:\/\/events.umich.edu\/event\/145688", "building_id":"null", "building_name":"Off Campus Location", "campus_maps_id":"1", "room":"", "location_name":"Ann Arbor District Library- Westgate Branch 2503 Jackson Ave. Ann Arbor 48103", "has_livestream":0, "cost":"", "tags":["Faculty","seminar","Science","Research","Public Health","Postdoctoral Research Fellows","Nutrition","In Person","Graduate Students","Graduate and Professional Students","Free","Food"], "website":"https:\/\/medresearch.umich.edu\/labs-departments\/centers\/diabetes\/caswell-diabetes-institute-community-seminar-series-1", "sponsors":[ { "group_name":"Caswell Diabetes Institute", "group_id":"4748", "website":"" } ], "image_url":"https:\/\/events.umich.edu\/media\/attachments\/2026\/02\/event_145688_original-1.jpg", "styled_images":{ "event_thumb":"https:\/\/events.umich.edu\/media\/cache\/event_thumb\/media\/attachments\/2026\/02\/event_145688_original-1.jpg", "event_large":"https:\/\/events.umich.edu\/media\/cache\/event_large\/media\/attachments\/2026\/02\/event_145688_original-1.jpg", "event_large_2x":"https:\/\/events.umich.edu\/media\/cache\/event_large_2x\/media\/attachments\/2026\/02\/event_145688_original-1.jpg", "event_large_lightbox":"https:\/\/events.umich.edu\/media\/cache\/event_large_lightbox\/media\/attachments\/2026\/02\/event_145688_original-1.jpg", "group_thumb":"https:\/\/events.umich.edu\/media\/cache\/group_thumb\/media\/attachments\/2026\/02\/event_145688_original-1.jpg", "group_thumb_square":"https:\/\/events.umich.edu\/media\/cache\/group_thumb_square\/media\/attachments\/2026\/02\/event_145688_original-1.jpg", "group_large":"https:\/\/events.umich.edu\/media\/cache\/group_large\/media\/attachments\/2026\/02\/event_145688_original-1.jpg", "group_large_lightbox":"https:\/\/events.umich.edu\/media\/cache\/group_large_lightbox\/media\/attachments\/2026\/02\/event_145688_original-1.jpg", "event_large_crop":"https:\/\/events.umich.edu\/media\/cache\/event_large_crop\/media\/attachments\/2026\/02\/event_145688_original-1.jpg", "event_list":"https:\/\/events.umich.edu\/media\/cache\/event_list\/media\/attachments\/2026\/02\/event_145688_original-1.jpg", "event_list_2x":"https:\/\/events.umich.edu\/media\/cache\/event_list_2x\/media\/attachments\/2026\/02\/event_145688_original-1.jpg", "event_grid":"https:\/\/events.umich.edu\/media\/cache\/event_grid\/media\/attachments\/2026\/02\/event_145688_original-1.jpg", "event_grid_2x":"https:\/\/events.umich.edu\/media\/cache\/event_grid_2x\/media\/attachments\/2026\/02\/event_145688_original-1.jpg", "event_feature_large":"https:\/\/events.umich.edu\/media\/cache\/event_feature_large\/media\/attachments\/2026\/02\/event_145688_original-1.jpg", "event_feature_thumb":"https:\/\/events.umich.edu\/media\/cache\/event_feature_thumb\/media\/attachments\/2026\/02\/event_145688_original-1.jpg" }, "occurrence_count":1, "first_occurrence":21897698 } , "142453-21890971": { "datetime_modified":"20260303T122837", "datetime_start":"20260521T180000", "datetime_end":"20260521T193000", "has_end_time":1, "date_start":"2026-05-21", "date_end":"2026-05-21", "time_start":"18:00:00", "time_end":"19:30:00", "time_zone":"America\/Detroit", "event_title":"The Lost Campus: The University of Michigan\u2019s Vanished but not Forgotten Spaces", "occurrence_title":"", "combined_title":"The Lost Campus: The University of Michigan\u2019s Vanished but not Forgotten Spaces", "event_subtitle":"", "event_type":"Lecture \/ Discussion", "event_type_id":"13", "description":"The University of Michigan\u2019s campus has a long and deep history and every generation has cherished particular places, such as the campus zoo or the famous \u201cSleepy Hollow.\u201d Many of these locations are now gone, but not forgotten. Join us to hear from Professor Jim Tobin as he traces U-M\u2019s \u201clost campus\u201d and how the campus\u2019 changing spaces reflect broader patterns in university history.\n\nPresented with support from the Alumni Association of the University of Michigan.\n\nRefreshments will be provided.", "occurrence_notes":null, "guid":"142453-21890971@events.umich.edu", "permalink":"http:\/\/events.umich.edu\/event\/142453", "building_id":"1000198", "building_name":"Detroit Observatory", "campus_maps_id":"189", "room":"", "location_name":"Detroit Observatory", "has_livestream":0, "cost":"", "tags":["history","bentley library","free","educational","Education","university history","lecture","Making Michigan","U-m History","university of michigan history","bentley historical library"], "website":"https:\/\/lp.constantcontactpages.com\/ev\/reg\/w339w7q", "sponsors":[ { "group_name":"Bentley Historical Library", "group_id":"2901", "website":"http:\/\/bentley.umich.edu" } ], "image_url":"https:\/\/events.umich.edu\/media\/attachments\/2025\/12\/event_142453_original-1.jpg", "styled_images":{ "event_thumb":"https:\/\/events.umich.edu\/media\/cache\/event_thumb\/media\/attachments\/2025\/12\/event_142453_original-1.jpg", "event_large":"https:\/\/events.umich.edu\/media\/cache\/event_large\/media\/attachments\/2025\/12\/event_142453_original-1.jpg", "event_large_2x":"https:\/\/events.umich.edu\/media\/cache\/event_large_2x\/media\/attachments\/2025\/12\/event_142453_original-1.jpg", "event_large_lightbox":"https:\/\/events.umich.edu\/media\/cache\/event_large_lightbox\/media\/attachments\/2025\/12\/event_142453_original-1.jpg", "group_thumb":"https:\/\/events.umich.edu\/media\/cache\/group_thumb\/media\/attachments\/2025\/12\/event_142453_original-1.jpg", "group_thumb_square":"https:\/\/events.umich.edu\/media\/cache\/group_thumb_square\/media\/attachments\/2025\/12\/event_142453_original-1.jpg", "group_large":"https:\/\/events.umich.edu\/media\/cache\/group_large\/media\/attachments\/2025\/12\/event_142453_original-1.jpg", "group_large_lightbox":"https:\/\/events.umich.edu\/media\/cache\/group_large_lightbox\/media\/attachments\/2025\/12\/event_142453_original-1.jpg", "event_large_crop":"https:\/\/events.umich.edu\/media\/cache\/event_large_crop\/media\/attachments\/2025\/12\/event_142453_original-1.jpg", "event_list":"https:\/\/events.umich.edu\/media\/cache\/event_list\/media\/attachments\/2025\/12\/event_142453_original-1.jpg", "event_list_2x":"https:\/\/events.umich.edu\/media\/cache\/event_list_2x\/media\/attachments\/2025\/12\/event_142453_original-1.jpg", "event_grid":"https:\/\/events.umich.edu\/media\/cache\/event_grid\/media\/attachments\/2025\/12\/event_142453_original-1.jpg", "event_grid_2x":"https:\/\/events.umich.edu\/media\/cache\/event_grid_2x\/media\/attachments\/2025\/12\/event_142453_original-1.jpg", "event_feature_large":"https:\/\/events.umich.edu\/media\/cache\/event_feature_large\/media\/attachments\/2025\/12\/event_142453_original-1.jpg", "event_feature_thumb":"https:\/\/events.umich.edu\/media\/cache\/event_feature_thumb\/media\/attachments\/2025\/12\/event_142453_original-1.jpg" }, "occurrence_count":1, "first_occurrence":21890971 } }