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DTSTART:20070311T020000
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BEGIN:VEVENT
DTSTAMP:20261015T145608
DTSTART;TZID=America/Detroit:20261021T153000
DTEND;TZID=America/Detroit:20261021T165000
SUMMARY:Workshop / Seminar:Algebraic Geometry Seminar: From stability conditions to generalized Bogomolov-Gieseker inequalities
DESCRIPTION:The classical Bogomolov-Gieseker inequality provides a bound on the second Chern character of semistable sheaves\, which is an essential ingredient in the construction of stability conditions on surfaces. Generalizing this\, Bayer-Macrì-Toda proposed to use a conjectural ch_3 inequality for tilt stable objects to construct stability conditions on threefolds. This inequality found many applications ranging from counting invariants to linear series\, but people were only able to prove it in special cases.\n\nThe recent breakthrough of Chunyi Li provides a different route to construct stability conditions over any projective variety. In my talk\, I will recall this beautiful idea\, and explain that\, via an enhancement of Li’s construction together with some reverse-engineering\, we can produce a series of inequalities on any Chern characters for suitable objects on any variety\, with Bogomolov-Gieseker and Bayer-Macrì-Toda as the first two instances. This is based on joint work in progress with Chunyi Li\, Zhiyu Liu and Benjamin Sung.\n\nIf time permits\, I will also discuss a strengthen of this result for ch_3 inequality using Frobenius method\, based on joint work with Chunyi Li\, Zhiyu Liu and Alex Perry. Parts of these projects are AI-assisted\, which will be explained in the talk.
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:20260805T123105
DTSTART;TZID=America/Detroit:20261104T153000
DTEND;TZID=America/Detroit:20261104T170000
SUMMARY:Workshop / Seminar:Algebraic Geometry Seminar: TBA
DESCRIPTION:TBA
UID:149916-21907370@events.umich.edu
URL:https://events.umich.edu/event/149916
CLASS:PUBLIC
STATUS:CONFIRMED
CATEGORIES:Mathematics
LOCATION:East Hall - 4096
CONTACT:
END:VEVENT
BEGIN:VEVENT
DTSTAMP:20260729T061726
DTSTART;TZID=America/Detroit:20261111T153000
DTEND;TZID=America/Detroit:20261111T170000
SUMMARY:Workshop / Seminar:Algebraic Geometry Seminar
DESCRIPTION:TBA
UID:149641-21906838@events.umich.edu
URL:https://events.umich.edu/event/149641
CLASS:PUBLIC
STATUS:CONFIRMED
CATEGORIES:Mathematics
LOCATION:East Hall - 4096
CONTACT:
END:VEVENT
BEGIN:VEVENT
DTSTAMP:20260914T144353
DTSTART;TZID=America/Detroit:20261118T153000
DTEND;TZID=America/Detroit:20261118T170000
SUMMARY:Workshop / Seminar:Algebraic Geometry Seminar: Stable map resolutions of Richardson varieties
DESCRIPTION:Given a circle action S on a projective variety X\, we introduce the \"stable map quotient\" using Kontsevich's space of stable maps of curves. In the case that X is a Richardson variety (the intersection of a Schubert with an opposite Schubert variety)\, generally very singular\, the quotient is nonetheless smooth! I'll use this to give a log resolution of Richardson varieties\, and describe the dual simplicial complex to the anticanonical sncd boundary.
UID:152133-21913121@events.umich.edu
URL:https://events.umich.edu/event/152133
CLASS:PUBLIC
STATUS:CONFIRMED
CATEGORIES:Mathematics
LOCATION:East Hall - 4096
CONTACT:
END:VEVENT
BEGIN:VEVENT
DTSTAMP:20261015T184504
DTSTART;TZID=America/Detroit:20261202T153000
DTEND;TZID=America/Detroit:20261202T170000
SUMMARY:Workshop / Seminar:Algebraic Geometry Seminar: TBA
DESCRIPTION:TBA
UID:153755-21916280@events.umich.edu
URL:https://events.umich.edu/event/153755
CLASS:PUBLIC
STATUS:CONFIRMED
CATEGORIES:Mathematics
LOCATION:East Hall - 4096
CONTACT:
END:VEVENT
BEGIN:VEVENT
DTSTAMP:20260807T130040
DTSTART;TZID=America/Detroit:20261209T153000
DTEND;TZID=America/Detroit:20261209T165000
SUMMARY:Workshop / Seminar:Algebraic Geometry Seminar -- TBA
DESCRIPTION:TBA
UID:149995-21907793@events.umich.edu
URL:https://events.umich.edu/event/149995
CLASS:PUBLIC
STATUS:CONFIRMED
CATEGORIES:Mathematics
LOCATION:East Hall - 4096
CONTACT:
END:VEVENT
BEGIN:VEVENT
DTSTAMP:20260627T181224
DTSTART;TZID=America/Detroit:20270113T153000
DTEND;TZID=America/Detroit:20270113T170000
SUMMARY:Workshop / Seminar:Algebraic Geometry Seminar: TBA
DESCRIPTION:TBA
UID:149136-21905811@events.umich.edu
URL:https://events.umich.edu/event/149136
CLASS:PUBLIC
STATUS:CONFIRMED
CATEGORIES:Mathematics
LOCATION:East Hall - 4096
CONTACT:
END:VEVENT
BEGIN:VEVENT
DTSTAMP:20260716T122023
DTSTART;TZID=America/Detroit:20270120T153000
DTEND;TZID=America/Detroit:20270120T165000
SUMMARY:Workshop / Seminar:Algebraic Geometery Seminar: TBA
DESCRIPTION:TBA
UID:149437-21906419@events.umich.edu
URL:https://events.umich.edu/event/149437
CLASS:PUBLIC
STATUS:CONFIRMED
CATEGORIES:Mathematics
LOCATION:East Hall - 4096
CONTACT:
END:VEVENT
BEGIN:VEVENT
DTSTAMP:20261011T105003
DTSTART;TZID=America/Detroit:20270310T153000
DTEND;TZID=America/Detroit:20270310T170000
SUMMARY:Workshop / Seminar:Algebraic Geometry Seminar: TBA
DESCRIPTION:TBA
UID:153532-21915968@events.umich.edu
URL:https://events.umich.edu/event/153532
CLASS:PUBLIC
STATUS:CONFIRMED
CATEGORIES:Mathematics
LOCATION:East Hall - 4096
CONTACT:
END:VEVENT
BEGIN:VEVENT
DTSTAMP:20260923T112532
DTSTART;TZID=America/Detroit:20270317T153000
DTEND;TZID=America/Detroit:20270317T170000
SUMMARY:Workshop / Seminar:Michigan Lectures in Algebraic Geometry
DESCRIPTION:TBA
UID:152721-21914428@events.umich.edu
URL:https://events.umich.edu/event/152721
CLASS:PUBLIC
STATUS:CONFIRMED
CATEGORIES:Mathematics
LOCATION:East Hall - 4096
CONTACT:
END:VEVENT
BEGIN:VEVENT
DTSTAMP:20260729T143054
DTSTART;TZID=America/Detroit:20270331T153000
DTEND;TZID=America/Detroit:20270331T165000
SUMMARY:Workshop / Seminar:Algebraic Geometry Seminar -- TBA
DESCRIPTION:TBA
UID:149661-21906908@events.umich.edu
URL:https://events.umich.edu/event/149661
CLASS:PUBLIC
STATUS:CONFIRMED
CATEGORIES:Mathematics
LOCATION:East Hall - 4096
CONTACT:
END:VEVENT
BEGIN:VEVENT
DTSTAMP:20261011T163208
DTSTART;TZID=America/Detroit:20270428T153000
DTEND;TZID=America/Detroit:20270428T170000
SUMMARY:Workshop / Seminar:Algebraic Geometry Seminar: TBA
DESCRIPTION:TBA
UID:153537-21915978@events.umich.edu
URL:https://events.umich.edu/event/153537
CLASS:PUBLIC
STATUS:CONFIRMED
CATEGORIES:Mathematics
LOCATION:East Hall - 4096
CONTACT:
END:VEVENT
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