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DTSTART:20070311T020000
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BEGIN:VEVENT
DTSTAMP:20260908T151707
DTSTART;TZID=America/Detroit:20260909T160000
DTEND;TZID=America/Detroit:20260909T170000
SUMMARY:Social / Informal Gathering:German Convo on the Go
DESCRIPTION:Meet at Burton Tower for a 1-hour walk and talk in German with Mary Gell (magell@umich.edu). This event happens 'rain or shine.' Open to speakers of German at all levels.
UID:151752-21912116@events.umich.edu
URL:https://events.umich.edu/event/151752
CLASS:PUBLIC
STATUS:CONFIRMED
CATEGORIES:European,German,German Studies,Germanic Languages And Literatures,Humanities,Language
LOCATION:Burton Memorial Tower - Meet Outside the Tower
CONTACT:
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DTSTAMP:20260909T060247
DTSTART;TZID=America/Detroit:20260909T160000
DTEND;TZID=America/Detroit:20260909T180000
SUMMARY:Other:Ice Cream Social with MBW
DESCRIPTION:Come join MBW for some ice cream or a donut! Drop by Washtenaw Dairy to reconnect after summer\, meet new friends\, and learn more about the club.
UID:151166-21911027@events.umich.edu
URL:https://events.umich.edu/event/151166
CLASS:PUBLIC
STATUS:CONFIRMED
CATEGORIES:
LOCATION:Washtenaw Dairy
CONTACT:
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BEGIN:VEVENT
DTSTAMP:20260805T125826
DTSTART;TZID=America/Detroit:20260909T160000
DTEND;TZID=America/Detroit:20260909T173000
SUMMARY:Workshop / Seminar:LSA Transfer Information Session
DESCRIPTION:Join the LSA Transfer Recruitment Team for our virtual sessions where we will discuss LSA requirements\, transfer credit\, pre-transfer academic advising\, LSA opportunities and other transfer tidbits.\n\nRegistration is required. Register using link to the right
UID:141040-21907392@events.umich.edu
URL:https://events.umich.edu/event/141040
CLASS:PUBLIC
STATUS:CONFIRMED
CATEGORIES:Transfer Students
LOCATION:Off Campus Location
CONTACT:
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BEGIN:VEVENT
DTSTAMP:20260901T081333
DTSTART;TZID=America/Detroit:20260909T160000
DTEND;TZID=America/Detroit:20260909T170000
SUMMARY:Workshop / Seminar:Probability and Analysis Seminar: A Riemann-Hilbert approach to Dyson Brownian motion and Gaussian multiplicative chaos
DESCRIPTION:Abstract: The connection between random matrices and Gaussian multiplicative chaos (GMC) has been studied intensively since the work of Fyodorov and Keating (2014). There has been recent interest in the appearance of GMC in dynamical ensembles of random matrices and their eigenvalues\, such as the Dyson Brownian motion (Keles 2025). We propose a Riemann-Hilbert approach to this problem. I will explain how our approach allows one to probe the “microscopic scale” (a scale which is inaccessible via loop equations)\, where the appearance of Painlevé transcendents is anticipated. This is joint work with Ahmad Barhoumi.
UID:151180-21911039@events.umich.edu
URL:https://events.umich.edu/event/151180
CLASS:PUBLIC
STATUS:CONFIRMED
CATEGORIES:Mathematics
LOCATION:East Hall - 4088
CONTACT:
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BEGIN:VEVENT
DTSTAMP:20260803T153429
DTSTART;TZID=America/Detroit:20260909T160000
DTEND;TZID=America/Detroit:20260909T170000
SUMMARY:Workshop / Seminar:Stability\, Approximation\, and Robustness of Optimal Policies in POMDPs
DESCRIPTION:In this talk\, I will focus on the stability\, approximation\, and robustness of optimal policies in partially observable Markov decision processes (POMDPs) under discounted and average cost criteria.\n\nI will begin with filter kernel perturbation under model change. I will establish how small perturbations in the transition or observation kernels lead to explicit\, nonasymptotic bounds on both the filter kernel and the performance of the induced policies. A primary result demonstrates that an optimal policy computed under an incorrect model remains near optimal for the true model\, with quantitatively bounded errors.\n\nBuilding on these stability concepts\, I will then talk about the average cost setting and describe conditions under which the nonlinear filter exhibits a contraction property. Under these conditions\, the vanishing discounted approach yields a solution to the average cost optimality equation\, guaranteeing the existence of a stationary optimal policy. Furthermore\, this provides explicit bounds that quantify the influence of initial prior distribution errors and model errors on long run performance.\n\nFinally\, I will present results on implementable approximations. I will introduce refined error bounds for finite window controllers and conclude by discussing how Q learning can be utilized through either finite window or the quantization of the belief process to obtain near optimal policies for both discounted and average cost criteria.
UID:149581-21906722@events.umich.edu
URL:https://events.umich.edu/event/149581
CLASS:PUBLIC
STATUS:CONFIRMED
CATEGORIES:Mathematics
LOCATION:East Hall - 1360
CONTACT:
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BEGIN:VEVENT
DTSTAMP:20260906T010254
DTSTART;TZID=America/Detroit:20260909T160000
DTEND;TZID=America/Detroit:20260909T170000
SUMMARY:Workshop / Seminar:Student AIM Seminar: Planning Meeting
DESCRIPTION:Hope you had a wonderful summer break\, and welcome to the new semester! The Student AIM Seminar will be holding a planning meeting on Wednesday\, September 9 from 4-5 pm in East Hall 3088. We'd love to hear about your ideas about any social/professional event ideas\, research topics\, or speakers that you'd like us to facilitate for this semester. We especially encourage first-year PhD students to attend.
UID:151640-21911885@events.umich.edu
URL:https://events.umich.edu/event/151640
CLASS:PUBLIC
STATUS:CONFIRMED
CATEGORIES:Applied Mathematics
LOCATION:East Hall - 3088
CONTACT:
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