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DTSTAMP:20261026T085513
DTSTART;TZID=America/Detroit:20261113T150000
DTEND;TZID=America/Detroit:20261113T160000
SUMMARY:Lecture / Discussion:HET Seminar | Euclidean Wormholes and Axion Cosmology
DESCRIPTION:Axions arise ubiquitously in theories of particle physics and quantum gravity and may play important roles in cosmology\, from inflation and dark matter to dark energy. This raises a basic question: does quantum gravity constrain the allowed parameter space of axions\, and can such constraints have observable consequences? I will discuss how Euclidean wormholes provide a surprising connection between these questions and quantum gravity. I will first review the axionic Weak Gravity Conjecture (aWGC)\, including the importance of its order-one coefficient for axion phenomenology\, and then describe how Euclidean wormholes may give rise to this bound. I will discuss the perturbative stability of axion wormholes and their explicit realization in string theory\, both in flat space and in AdS. Finally\, I will present recent work showing that the aWGC can arise directly from the nonperturbative fragmentation of Euclidean wormholes into charged defects. Requiring such fragmentation to lower the Euclidean action fixes the action-to-charge bound and its order-one coefficient\, and reveals a direct connection to the Imaginary Distance Bound. This suggests that quantum-gravitational constraints on axions can be understood as conditions on the non-perturbative stability of gravitational saddles\, with implications for axion cosmology and the consistency of effective field theories.
UID:151162-21910993@events.umich.edu
URL:https://events.umich.edu/event/151162
CLASS:PUBLIC
STATUS:CONFIRMED
CATEGORIES:High Energy Theory Seminar,Lecture,Physics,Science,Seminar,Talk
LOCATION:West Hall - 340
CONTACT:
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DTSTAMP:20261020T144533
DTSTART;TZID=America/Detroit:20261113T150000
DTEND;TZID=America/Detroit:20261113T163000
SUMMARY:Lecture / Discussion:Incorporations: Capitalism and Collective Life with Associate Professor Matthew Hull
DESCRIPTION:Join the U-M Department of Anthropology for the annual Roy A. Rappaport Lecture Series! Associate Professor Matthew Hull will present the fall 2026 series\, titled “Incorporations: Capitalism and Collective Life.”\n\nAbstract: “Corporations are often seen as purely economic actors\, but they have been central to Anglo-American governance for centuries—pioneers of democratic assembly\, speech\, citizenship\, and constitutions. Many features of corporations\, once grounded in democratic ideals\, now foster the unresponsiveness of these institutions. These lectures will include discussion of a diverse array of corporations: medieval guilds\, the English East India Company\, Alaska Native corporations\, and caste-based corporations in India.”\n\nRappaport lectures will take place on the following fall Fridays from 3 to 4:30 p.m. in West Hall Room 411. They are free and open to the public:\n\nFriday\, Sept. 25\n“Corporate Persons in Human Law: Reproduction\, Kinship\, Jurisdiction”\n\nFriday\, Oct. 23\n“Freedom and Citizenship: Corporate Membership and the Making of Exclusion”\n\nFriday\, Nov. 13\n“Meetings and Speech: Corporate Mediations of Will”\n\nFriday\, Dec. 4\n“Sharing and Inequality in Corporations”\n\nVIRTUAL PARTICIPATION LINK: https://umich.zoom.us/j/91475190155\n\nREGISTRATION IS APPRECIATED for planning purposes: https://myumi.ch/e77Ax\n\nIf you need accommodations to attend\, please email anthro.exec.secretary@umich.edu.\n\nABOUT ASSOCIATE PROFESSOR MATTHEW HULL\nMatthew Hull is Associate Professor of Anthropology at the University of Michigan. His research focuses on the nexus of signification\, technology\, and institutions. His book\, “Government of Paper: The Materiality of Bureaucracy in Urban Pakistan\,” winner of the 2019 J.I. Staley Prize from the School of Advanced Research\, examines governance as a semiotic and material practice. He has worked on urban planning in 1960s India and police communication systems and lotteries in contemporary India. He is currently writing a book on how early modern corporations shaped democratic governance and continue to structure contemporary political life.
UID:148332-21903936@events.umich.edu
URL:https://events.umich.edu/event/148332
CLASS:PUBLIC
STATUS:CONFIRMED
CATEGORIES:AEM Featured,Anthropology,Lecture,South Asian Studies
LOCATION:West Hall - 411
CONTACT:
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BEGIN:VEVENT
DTSTAMP:20261019T121326
DTSTART;TZID=America/Detroit:20261113T150000
DTEND;TZID=America/Detroit:20261113T170000
SUMMARY:Workshop / Seminar:International Education Week Celebration (2026)
DESCRIPTION:Join various International Education units on campus to celebrate International Education Week 2026!\n\nNovember 13th\, 3-5pm: IEW Rock Painting (George Washington Park Rock)\nNovember 18th\, 5-6:30pm: IEW Global Photo Showcase (Weiser Hall 10th floor)\n\nFeel free to register for one or both of these events to join us in celebrating study abroad\, international internships\, and international students here at the University of Michigan. :)\n\nThese events are organized by the Center for Global & Intercultural Study\, Global Engagement — Office of the Provost\, the International Institute\, International Programs in Engineering\, Ross Global Initiatives\, and the International Center.
UID:149937-21907398@events.umich.edu
URL:https://events.umich.edu/event/149937
CLASS:PUBLIC
STATUS:CONFIRMED
CATEGORIES:Abroad,All Majors Welcome,Art,Community,Exhibition,global engagement,Graduate Students,international,international center,International Education,International Education Week,international students,photography,Sessions,social and cultural event,study abroad,Travel,Travel Abroad,Undergraduate,visual arts
LOCATION:George Washington Park Rock (Corner of Hill Street & Washtenaw)
CONTACT:
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BEGIN:VEVENT
DTSTAMP:20261105T132852
DTSTART;TZID=America/Detroit:20261113T150000
DTEND;TZID=America/Detroit:20261113T160000
SUMMARY:Workshop / Seminar:On the Algebra of Moving Window Calculations
DESCRIPTION:Moving window calculations arise throughout applied mathematics\, computer science\, and engineering. Familiar examples include moving sums\, maxima\, and filters\, but the same basic problem also appears in more general windowed recurrences. In this talk\, we show that a large class of such calculations admits a common algebraic formulation. In the associative setting\, moving window calculations can be recast as exponentiation in a semidirect product\, bringing efficient powering algorithms to bear. In more general settings\, semi-associativity provides the right framework for representing compositions of updates and understanding when efficient computation is still possible. This point of view not only unifies a broad family of examples\, but also leads naturally to compact vectorized implementations\, making the methods well suited to modern GPU architectures. This is joint work with David Maslen.
UID:149671-21906924@events.umich.edu
URL:https://events.umich.edu/event/149671
CLASS:PUBLIC
STATUS:CONFIRMED
CATEGORIES:Mathematics
LOCATION:East Hall - 4088
CONTACT:
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BEGIN:VEVENT
DTSTAMP:20260914T101215
DTSTART;TZID=America/Detroit:20261113T150000
DTEND;TZID=America/Detroit:20261113T154500
SUMMARY:Film Screening:Sky Tonight
DESCRIPTION:A live presentation on what to find in the sky tonight and for the coming few weeks. This presentation includes how to find the cardinal directions with the North Star\, current and upcoming constellations\, visible planets\, a few deep sky objects depending on the season\, and other interesting astronomical visualizations. If you want to be able to look up from your own backyard and know what to look for\, this is the show for you.
UID:141325-21912815@events.umich.edu
URL:https://events.umich.edu/event/141325
CLASS:PUBLIC
STATUS:CONFIRMED
CATEGORIES:Astronomy,Children,Family,Film,Museum,museums,natural history museum,Natural Sciences,Planetarium,Prospective Undergraduate Students,Science,Space,Undergraduate
LOCATION:Museum of Natural History - Planetarium & Dome Theater
CONTACT:
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BEGIN:VEVENT
DTSTAMP:20261012T122524
DTSTART;TZID=America/Detroit:20261113T150000
DTEND;TZID=America/Detroit:20261113T160000
SUMMARY:Lecture / Discussion:Steffy Lecture: Irina Dolinskaya\, NSF
DESCRIPTION:Abstract\nLooking back on my professional journey\, I am struck by how much of it was shaped by people\, opportunities\, and experiences I could not have anticipated as a student at the University of Michigan.\n\nIn this talk\, I will reflect on my journey from the University of Michigan’s Industrial and Operations Engineering program to my current role as a Directorate Head at the National Science Foundation\, and how my Michigan education prepared me for the opportunities and challenges along the way. I will share lessons learned about\nleadership\, collaboration\, resilience\, and the importance of remaining open to unexpected opportunities.\n\nI hope to encourage students to build a strong foundation\, stay curious\, embrace opportunities\, and recognize that a meaningful career does not always follow a predictable path.\n\nBiography \nDr. Irina Dolinskaya is the Directorate Head for Computer and Information Science and Engineering at the U.S. National Science Foundation (NSF). Previously\, she served as Deputy Division Director and Program Director at NSF and as a faculty member in Industrial Engineering and Management Sciences at Northwestern University.\n\nA proud Michigan alumna\, Dr. Dolinskaya earned her M.S. and Ph.D. in Industrial and Operations Engineering from the University of Michigan and her B.S. in Industrial Engineering from the University of Florida. Her research focuses on transportation science and logistics\, including humanitarian logistics\, vessel performance\, and electric vehicle routing. She credits her education at Michigan as an important foundation for her academic and professional journey.
UID:150647-21909755@events.umich.edu
URL:https://events.umich.edu/event/150647
CLASS:PUBLIC
STATUS:CONFIRMED
CATEGORIES:Industrial And Operations Engineering,Michigan Engineering
LOCATION:Lurie Robert H. Engin. Ctr - GM Room
CONTACT:
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BEGIN:VEVENT
DTSTAMP:20261109T112728
DTSTART;TZID=America/Detroit:20261113T150000
DTEND;TZID=America/Detroit:20261113T160000
SUMMARY:Workshop / Seminar:Student Algebraic Geometry: Compactifications of Siegel Modular Varieties
DESCRIPTION:The Siegel upper half-space H_g serves as a natural generalization of the upper half-plane. Indeed\, just as M_{1\,1} = A_1 is the quotient H/SL_2(Z)\, one can show that A_g\, the space of principally polarized abelian varieties of dimension g\, is isomorphic to H_g/Sp_{2g}(Z). More generally\, one can consider spaces H_g/Gamma for any arithmetic subgroup Gamma in Sp_{2g}(Q). Unlike M_g\, which admits the canonical Deligne-Mumford compactification\, these spaces admit many natural compactifications with different geometric properties. In this talk\, we introduce H_g/Gamma\, the Siegel modular varieties\, and discuss various compactifications such as the Baily–Borel compactification and toroidal compactifications. We then focus on the specific case of g = 2 to showcase the beautiful arithmetic that occurs even in this small case.
UID:154655-21918147@events.umich.edu
URL:https://events.umich.edu/event/154655
CLASS:PUBLIC
STATUS:CONFIRMED
CATEGORIES:Mathematics
LOCATION:East Hall - 2866
CONTACT:
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