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PRODID:-//UM//UM*Events//EN
CALSCALE:GREGORIAN
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TZID:America/Detroit
TZURL:http://tzurl.org/zoneinfo/America/Detroit
X-LIC-LOCATION:America/Detroit
BEGIN:DAYLIGHT
TZOFFSETFROM:-0500
TZOFFSETTO:-0400
TZNAME:EDT
DTSTART:20070311T020000
RRULE:FREQ=YEARLY;BYMONTH=3;BYDAY=2SU
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TZOFFSETFROM:-0400
TZOFFSETTO:-0500
TZNAME:EST
DTSTART:20071104T020000
RRULE:FREQ=YEARLY;BYMONTH=11;BYDAY=1SU
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END:VTIMEZONE
BEGIN:VEVENT
DTSTAMP:20260610T211350
DTSTART;TZID=America/Detroit:20260904T150000
DTEND;TZID=America/Detroit:20260904T160000
SUMMARY:Lecture / Discussion:Open Slot
DESCRIPTION:Abstract:  TBA\n\nContact:  TBA
UID:148872-21905034@events.umich.edu
URL:https://events.umich.edu/event/148872
CLASS:PUBLIC
STATUS:CONFIRMED
CATEGORIES:Mathematics,Applied Mathematics
LOCATION:East Hall - 1084
CONTACT:
END:VEVENT
BEGIN:VEVENT
DTSTAMP:20260310T061642
DTSTART;TZID=America/Detroit:20260908T160000
DTEND;TZID=America/Detroit:20260908T170000
SUMMARY:Lecture / Discussion:Colloquium: TBA
DESCRIPTION:TBA
UID:146386-21898980@events.umich.edu
URL:https://events.umich.edu/event/146386
CLASS:PUBLIC
STATUS:CONFIRMED
CATEGORIES:Mathematics
LOCATION:East Hall - 1360
CONTACT:
END:VEVENT
BEGIN:VEVENT
DTSTAMP:20260610T211640
DTSTART;TZID=America/Detroit:20260911T150000
DTEND;TZID=America/Detroit:20260911T160000
SUMMARY:Lecture / Discussion:Open Slot
DESCRIPTION:Abstract:  TBA\n\nContact:  TBA
UID:148873-21905035@events.umich.edu
URL:https://events.umich.edu/event/148873
CLASS:PUBLIC
STATUS:CONFIRMED
CATEGORIES:Mathematics,Applied Mathematics
LOCATION:East Hall - 1084
CONTACT:
END:VEVENT
BEGIN:VEVENT
DTSTAMP:20260522T084819
DTSTART;TZID=America/Detroit:20260911T150000
DTEND;TZID=America/Detroit:20260911T160000
SUMMARY:Workshop / Seminar:Combinatorics Seminar
DESCRIPTION:TBA
UID:148388-21904175@events.umich.edu
URL:https://events.umich.edu/event/148388
CLASS:PUBLIC
STATUS:CONFIRMED
CATEGORIES:Mathematics
LOCATION:East Hall - 4088
CONTACT:
END:VEVENT
BEGIN:VEVENT
DTSTAMP:20260610T211834
DTSTART;TZID=America/Detroit:20260918T150000
DTEND;TZID=America/Detroit:20260918T160000
SUMMARY:Lecture / Discussion:Open Slot
DESCRIPTION:Abstract:  TBA\n\nContact:  TBA
UID:148874-21905036@events.umich.edu
URL:https://events.umich.edu/event/148874
CLASS:PUBLIC
STATUS:CONFIRMED
CATEGORIES:Applied Mathematics,Mathematics
LOCATION:East Hall - 1084
CONTACT:
END:VEVENT
BEGIN:VEVENT
DTSTAMP:20251020T001438
DTSTART;TZID=America/Detroit:20260923T153000
DTEND;TZID=America/Detroit:20260923T170000
SUMMARY:Workshop / Seminar:Algebraic Geometry Seminar: TBA
DESCRIPTION:TBA
UID:140882-21887766@events.umich.edu
URL:https://events.umich.edu/event/140882
CLASS:PUBLIC
STATUS:CONFIRMED
CATEGORIES:Mathematics
LOCATION:East Hall - 4096
CONTACT:
END:VEVENT
BEGIN:VEVENT
DTSTAMP:20260610T212025
DTSTART;TZID=America/Detroit:20260925T150000
DTEND;TZID=America/Detroit:20260925T160000
SUMMARY:Lecture / Discussion:Open Slot
DESCRIPTION:Abstract:  TBA\n\nContact:  TBA
UID:148875-21905037@events.umich.edu
URL:https://events.umich.edu/event/148875
CLASS:PUBLIC
STATUS:CONFIRMED
CATEGORIES:Applied Mathematics,Mathematics
LOCATION:East Hall - 1084
CONTACT:
END:VEVENT
BEGIN:VEVENT
DTSTAMP:20260610T212218
DTSTART;TZID=America/Detroit:20261002T150000
DTEND;TZID=America/Detroit:20261002T160000
SUMMARY:Lecture / Discussion:Open Slot
DESCRIPTION:Abstract:  TBA\n\nContact:  TBA
UID:148876-21905038@events.umich.edu
URL:https://events.umich.edu/event/148876
CLASS:PUBLIC
STATUS:CONFIRMED
CATEGORIES:Applied Mathematics,Mathematics
LOCATION:East Hall - 1084
CONTACT:
END:VEVENT
BEGIN:VEVENT
DTSTAMP:20260407T124520
DTSTART;TZID=America/Detroit:20261007T160000
DTEND;TZID=America/Detroit:20261007T170000
SUMMARY:Workshop / Seminar:Robust and Risk-Sensitive Acceleration in Gradient Methods
DESCRIPTION:First-order methods such as gradient descent (GD) are foundational in optimization. In unconstrained problems with exact gradients\, momentum-based methods—most notably Nesterov’s accelerated gradient descent (AGD) and Polyak’s heavy-ball (HB) method—achieve faster convergence by improving dependence on the condition number. However\, this acceleration comes at a cost: momentum amplifies gradient noise\, making these methods less robust than GD under standard parameter choices and requiring more accurate gradient estimates to attain comparable accuracy. Similar challenges arise in convex and nonconvex min–max optimization.\nMotivated by applications in machine learning\, this talk studies unconstrained and min–max optimization under deterministic\, unbiased stochastic\, and biased stochastic gradient noise. I will present new algorithms that achieve optimal robustness against different noise types\, using control-theoretic tools such as the H_2​ norm\, the H_∞​ norm\, and the risk-sensitivity index\, together with coherent risk measures. I will also discuss worst-case noise constructions and high-probability convergence guarantees. This perspective builds a bridge between optimization and robust control theory and enables the design of noise-robust and risk-sensitive accelerated methods.\nRepresentative Publications:\nM. Gürbüzbalaban\, Y. Syed\, N. S. Aybat\, Accelerated gradient methods with biased gradient estimates: Risk sensitivity\, high-probability guarantees\, and large deviation bounds\, Journal of Nonlinear and Variational Analysis\, 2026 (Special Issue). https://jnva.biemdas.com/archives/2927\nM. Gürbüzbalaban\, Robustly Stable Accelerated Momentum Methods with a Near-Optimal L_2​ Gain and H_∞​ Performance\, Mathematics of Operations Research\, 2025.\nhttps://pubsonline.informs.org/doi/abs/10.1287/moor.2023.0321\nB. Can and M. Gürbüzbalaban\, Entropic risk-averse generalized momentum methods\, Optimization Methods and Software\, 2025. https://www.tandfonline.com/doi/abs/10.1080/10556788.2025.2549356
UID:141373-21888712@events.umich.edu
URL:https://events.umich.edu/event/141373
CLASS:PUBLIC
STATUS:CONFIRMED
CATEGORIES:Mathematics
LOCATION:East Hall - 1360
CONTACT:
END:VEVENT
BEGIN:VEVENT
DTSTAMP:20260610T212346
DTSTART;TZID=America/Detroit:20261009T150000
DTEND;TZID=America/Detroit:20261009T160000
SUMMARY:Lecture / Discussion:Open Slot
DESCRIPTION:Abstract:  TBA\n\nContact:  TBA
UID:148877-21905039@events.umich.edu
URL:https://events.umich.edu/event/148877
CLASS:PUBLIC
STATUS:CONFIRMED
CATEGORIES:Applied Mathematics,Mathematics
LOCATION:East Hall - 1084
CONTACT:
END:VEVENT
BEGIN:VEVENT
DTSTAMP:20260616T094227
DTSTART;TZID=America/Detroit:20261012T160000
DTEND;TZID=America/Detroit:20261012T170000
SUMMARY:Lecture / Discussion:Colloquium: TBA
DESCRIPTION:TBA
UID:148947-21905245@events.umich.edu
URL:https://events.umich.edu/event/148947
CLASS:PUBLIC
STATUS:CONFIRMED
CATEGORIES:Mathematics
LOCATION:East Hall - 1360
CONTACT:
END:VEVENT
BEGIN:VEVENT
DTSTAMP:20260610T212512
DTSTART;TZID=America/Detroit:20261016T150000
DTEND;TZID=America/Detroit:20261016T160000
SUMMARY:Lecture / Discussion:Open Slot
DESCRIPTION:Abstract:  TBA\n\nContact:  TBA
UID:148878-21905040@events.umich.edu
URL:https://events.umich.edu/event/148878
CLASS:PUBLIC
STATUS:CONFIRMED
CATEGORIES:Applied Mathematics,Mathematics
LOCATION:East Hall - 1084
CONTACT:
END:VEVENT
BEGIN:VEVENT
DTSTAMP:20260310T125925
DTSTART;TZID=America/Detroit:20261021T153000
DTEND;TZID=America/Detroit:20261021T165000
SUMMARY:Workshop / Seminar:Algebraic Geometry Seminar: TBA
DESCRIPTION:TBA
UID:146416-21899058@events.umich.edu
URL:https://events.umich.edu/event/146416
CLASS:PUBLIC
STATUS:CONFIRMED
CATEGORIES:Mathematics
LOCATION:East Hall
CONTACT:
END:VEVENT
BEGIN:VEVENT
DTSTAMP:20260616T020236
DTSTART;TZID=America/Detroit:20261023T150000
DTEND;TZID=America/Detroit:20261023T160000
SUMMARY:Lecture / Discussion:Reserved
DESCRIPTION:Abstract:  TBA\n\nContact: Naoki Masuda
UID:148879-21905041@events.umich.edu
URL:https://events.umich.edu/event/148879
CLASS:PUBLIC
STATUS:CONFIRMED
CATEGORIES:Mathematics,Applied Mathematics
LOCATION:East Hall - 1084
CONTACT:
END:VEVENT
BEGIN:VEVENT
DTSTAMP:20260515T044220
DTSTART;TZID=America/Detroit:20261027T160000
DTEND;TZID=America/Detroit:20261027T170000
SUMMARY:Lecture / Discussion:Colloquium: TBA
DESCRIPTION:TBA
UID:148250-21903442@events.umich.edu
URL:https://events.umich.edu/event/148250
CLASS:PUBLIC
STATUS:CONFIRMED
CATEGORIES:Mathematics,Applied Mathematics
LOCATION:East Hall - 1360
CONTACT:
END:VEVENT
BEGIN:VEVENT
DTSTAMP:20260608T221120
DTSTART;TZID=America/Detroit:20261028T160000
DTEND;TZID=America/Detroit:20261028T170000
SUMMARY:Workshop / Seminar:TBA
DESCRIPTION:TBA
UID:148617-21904532@events.umich.edu
URL:https://events.umich.edu/event/148617
CLASS:PUBLIC
STATUS:CONFIRMED
CATEGORIES:Mathematics
LOCATION:East Hall - 1360
CONTACT:
END:VEVENT
BEGIN:VEVENT
DTSTAMP:20260610T213024
DTSTART;TZID=America/Detroit:20261030T150000
DTEND;TZID=America/Detroit:20261030T160000
SUMMARY:Lecture / Discussion:Open Slot
DESCRIPTION:Abstract:  TBA\n\nContact:  TBA
UID:148880-21905042@events.umich.edu
URL:https://events.umich.edu/event/148880
CLASS:PUBLIC
STATUS:CONFIRMED
CATEGORIES:Mathematics,Applied Mathematics
LOCATION:East Hall - 1084
CONTACT:
END:VEVENT
BEGIN:VEVENT
DTSTAMP:20260610T213223
DTSTART;TZID=America/Detroit:20261106T150000
DTEND;TZID=America/Detroit:20261106T160000
SUMMARY:Lecture / Discussion:Open Slot
DESCRIPTION:Abstract:  TBA\n\nContact:  TBA
UID:148881-21905043@events.umich.edu
URL:https://events.umich.edu/event/148881
CLASS:PUBLIC
STATUS:CONFIRMED
CATEGORIES:Applied Mathematics,Mathematics
LOCATION:East Hall - 1084
CONTACT:
END:VEVENT
BEGIN:VEVENT
DTSTAMP:20251028T082420
DTSTART;TZID=America/Detroit:20261110T160000
DTEND;TZID=America/Detroit:20261110T170000
SUMMARY:Lecture / Discussion:2026 Van Eenan Lectures: Ronnie Sircar
DESCRIPTION:TBA
UID:141176-21888297@events.umich.edu
URL:https://events.umich.edu/event/141176
CLASS:PUBLIC
STATUS:CONFIRMED
CATEGORIES:Mathematics
LOCATION:East Hall - 1360
CONTACT:
END:VEVENT
BEGIN:VEVENT
DTSTAMP:20251028T082420
DTSTART;TZID=America/Detroit:20261111T160000
DTEND;TZID=America/Detroit:20261111T170000
SUMMARY:Lecture / Discussion:2026 Van Eenan Lectures: Ronnie Sircar
DESCRIPTION:TBA
UID:141176-21888405@events.umich.edu
URL:https://events.umich.edu/event/141176
CLASS:PUBLIC
STATUS:CONFIRMED
CATEGORIES:Mathematics
LOCATION:East Hall
CONTACT:
END:VEVENT
BEGIN:VEVENT
DTSTAMP:20251028T082420
DTSTART;TZID=America/Detroit:20261112T160000
DTEND;TZID=America/Detroit:20261112T170000
SUMMARY:Lecture / Discussion:2026 Van Eenan Lectures: Ronnie Sircar
DESCRIPTION:TBA
UID:141176-21888406@events.umich.edu
URL:https://events.umich.edu/event/141176
CLASS:PUBLIC
STATUS:CONFIRMED
CATEGORIES:Mathematics
LOCATION:East Hall
CONTACT:
END:VEVENT
BEGIN:VEVENT
DTSTAMP:20260610T213344
DTSTART;TZID=America/Detroit:20261113T150000
DTEND;TZID=America/Detroit:20261113T160000
SUMMARY:Lecture / Discussion:Open Slot
DESCRIPTION:Abstract:  TBA\n\nContact:  TBA
UID:148882-21905044@events.umich.edu
URL:https://events.umich.edu/event/148882
CLASS:PUBLIC
STATUS:CONFIRMED
CATEGORIES:Applied Mathematics,Mathematics
LOCATION:East Hall - 1084
CONTACT:
END:VEVENT
BEGIN:VEVENT
DTSTAMP:20260610T213516
DTSTART;TZID=America/Detroit:20261120T150000
DTEND;TZID=America/Detroit:20261120T160000
SUMMARY:Lecture / Discussion:Open Slot
DESCRIPTION:Abstract:  TBA\n\nContact:  TBA
UID:148883-21905045@events.umich.edu
URL:https://events.umich.edu/event/148883
CLASS:PUBLIC
STATUS:CONFIRMED
CATEGORIES:Applied Mathematics,Mathematics
LOCATION:East Hall - 1084
CONTACT:
END:VEVENT
BEGIN:VEVENT
DTSTAMP:20260610T213638
DTSTART;TZID=America/Detroit:20261204T150000
DTEND;TZID=America/Detroit:20261204T160000
SUMMARY:Lecture / Discussion:Open Slot
DESCRIPTION:Abstract:  TBA\n\nContact:  TBA
UID:148884-21905046@events.umich.edu
URL:https://events.umich.edu/event/148884
CLASS:PUBLIC
STATUS:CONFIRMED
CATEGORIES:Applied Mathematics,Mathematics
LOCATION:East Hall - 1084
CONTACT:
END:VEVENT
BEGIN:VEVENT
DTSTAMP:20260610T213800
DTSTART;TZID=America/Detroit:20261211T150000
DTEND;TZID=America/Detroit:20261211T160000
SUMMARY:Lecture / Discussion:Open Slot
DESCRIPTION:Abstract:  TBA\n\nContact:  TBA
UID:148885-21905047@events.umich.edu
URL:https://events.umich.edu/event/148885
CLASS:PUBLIC
STATUS:CONFIRMED
CATEGORIES:Applied Mathematics,Mathematics
LOCATION:East Hall - 1084
CONTACT:
END:VEVENT
BEGIN:VEVENT
DTSTAMP:20251205T091103
DTSTART;TZID=America/Detroit:20270420T160000
DTEND;TZID=America/Detroit:20270420T170000
SUMMARY:Lecture / Discussion:Colloquium: TBA
DESCRIPTION:TBA
UID:142065-21889962@events.umich.edu
URL:https://events.umich.edu/event/142065
CLASS:PUBLIC
STATUS:CONFIRMED
CATEGORIES:Mathematics
LOCATION:East Hall - 1360
CONTACT:
END:VEVENT
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