BEGIN:VCALENDAR
VERSION:2.0
PRODID:-//UM//UM*Events//EN
CALSCALE:GREGORIAN
BEGIN:VTIMEZONE
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
END:DAYLIGHT
BEGIN:STANDARD
TZOFFSETFROM:-0400
TZOFFSETTO:-0500
TZNAME:EST
DTSTART:20071104T020000
RRULE:FREQ=YEARLY;BYMONTH=11;BYDAY=1SU
END:STANDARD
END:VTIMEZONE
BEGIN:VEVENT
DTSTAMP:20260223T020145
DTSTART;TZID=America/Detroit:20260225T160000
DTEND;TZID=America/Detroit:20260225T170000
SUMMARY:Workshop / Seminar:Student AIM Seminar: A Beginner’s introduction to optimal control theory
DESCRIPTION:In this talk I describe the basic deterministic control problem and how to solve it using the method of the adjoint function. The method is motivated through examination of the problem’s structure and properties its solutions would exhibit. Hopefully by the end of this talk you’ll know what an adjoint function is\, be able to solve basic optimal control problems\, and have an idea of when solutions exist.
UID:145805-21897837@events.umich.edu
URL:https://events.umich.edu/event/145805
CLASS:PUBLIC
STATUS:CONFIRMED
CATEGORIES:Applied Mathematics
LOCATION:East Hall - 3088
CONTACT:
END:VEVENT
BEGIN:VEVENT
DTSTAMP:20260219T221509
DTSTART;TZID=America/Detroit:20260225T160000
DTEND;TZID=America/Detroit:20260225T170000
SUMMARY:Workshop / Seminar:Topology seminar: Top-dimensional cohomology of the congruence subgroup Gamma_{0\,n}(p)
DESCRIPTION:Let Gamma_{0\,n}(p) be the congruence subgroup of level p of SL_n(Z) whose first column is congruent to (*\,0\,\dots\,0)^t \mod p. The cohomology of this subgroup has connections to problems in algebraic K-theory and number theory. Borel and Serre (1973) showed that the rational cohomology of Gamma_{0\,n}(p) vanishes above degree n(n+1)/2. \n\nWe prove that the top-dimensional rational cohomology group of Gamma_{0\,n}(p) vanishes for all p equal to 2\,3\,5\,7\,13 and when n is at least 3\, as well as for all primes p at most 6n-14. We also reprove the known non-vanishing result that this group is nonzero for n=2 for every prime p\, and we establish a new non-vanishing for n=3 for all primes p not equal to 2\,3\,5\,7\,13. \n\nIn this talk\, I will outline the ideas behind these results and briefly survey what is known about the top-dimensional cohomology of related congruence subgroups.
UID:143836-21894104@events.umich.edu
URL:https://events.umich.edu/event/143836
CLASS:PUBLIC
STATUS:CONFIRMED
CATEGORIES:Mathematics
LOCATION:East Hall - 3866
CONTACT:
END:VEVENT
END:VCALENDAR