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BEGIN:VEVENT
SUMMARY:Arrive and Welcome Message
DTSTART:20260207T170000Z
DTEND:20260207T173000Z
DTSTAMP:20260422T213013Z
UID:RVAGeometryDay2026/1
DESCRIPTION:Title: <a href="https://researchseminars.org/talk/RVAGeometryD
 ay2026/1/">Arrive and Welcome Message</a>\nby Arrive and Welcome Message a
 s part of Richmond Geometry Day Spring 2026\n\nLecture held in Harris Hall
  4169.\nAbstract: TBA\n
LOCATION:https://researchseminars.org/talk/RVAGeometryDay2026/1/
END:VEVENT
BEGIN:VEVENT
SUMMARY:Ryan Stees (University of Virginia)
DTSTART:20260207T173000Z
DTEND:20260207T181500Z
DTSTAMP:20260422T213013Z
UID:RVAGeometryDay2026/2
DESCRIPTION:Title: <a href="https://researchseminars.org/talk/RVAGeometryD
 ay2026/2/">Almost-concordance of knots</a>\nby Ryan Stees (University of V
 irginia) as part of Richmond Geometry Day Spring 2026\n\nLecture held in H
 arris Hall 4169.\n\nAbstract\nIn this talk\, we will consider concordance 
 of knots modulo local knotting\, or almost-concordance\, in non-simply-con
 nected 3-manifolds. Conjecturally\, the number of almost-concordance class
 es of knots representing a fixed free homotopy class in a fixed 3-manifold
  is infinite\, aside from one type of exceptional case. We will discuss a 
 recipe for constructing large families of pairwise homotopic knots in asph
 erical 3-manifolds which are distinguished up to almost-concordance by ext
 ensions of Milnor’s link invariants.\n
LOCATION:https://researchseminars.org/talk/RVAGeometryDay2026/2/
END:VEVENT
BEGIN:VEVENT
SUMMARY:Pierre Godfard (The University of North Carolina at Chapel Hill)
DTSTART:20260207T184500Z
DTEND:20260207T193000Z
DTSTAMP:20260422T213013Z
UID:RVAGeometryDay2026/3
DESCRIPTION:Title: <a href="https://researchseminars.org/talk/RVAGeometryD
 ay2026/3/">Rigidity of some quantum representations of mapping class group
 s via Ocneanu rigidity</a>\nby Pierre Godfard (The University of North Car
 olina at Chapel Hill) as part of Richmond Geometry Day Spring 2026\n\nLect
 ure held in Harris Hall 4169.\n\nAbstract\nThe property (T) conjecture pre
 dicts that finite-dimensional unitary representations of mapping class gro
 ups $\\mathrm{Mod}(S_g)$ for $g \\geq 3$ are rigid (in the sense that they
  admit no infinitesimal deformations). While extensively studied for finit
 e image representations\, where it is known as the Ivanov conjecture\, muc
 h less is known for infinite image representations.\n\nWe establish rigidi
 ty of quantum representations arising from SU(2) and SO(3) modular categor
 ies\, for closed surfaces of genus $g\\geq 7$ and at levels $\\ell=p-2$ wh
 ere $p\\geq 5$ is prime. These are natural infinite image examples arising
  via the Reshetikhin-Turaev construction from unitary modular fusion categ
 ories.\n\nOur strategy exploits Ocneanu rigidity\, which asserts that quan
 tum representations admit no deformations as quantum representations. We p
 rove that any infinitesimal deformation necessarily remains quantum\, henc
 e is trivial. The proof combines fusion rules of modular functors with Hod
 ge theory on twisted moduli spaces of curves--certain Kähler compact orbi
 folds whose fundamental groups are quotients of mapping class groups.\n
LOCATION:https://researchseminars.org/talk/RVAGeometryDay2026/3/
END:VEVENT
BEGIN:VEVENT
SUMMARY:Sergei Gukov (Caltech)
DTSTART:20260207T203000Z
DTEND:20260207T213000Z
DTSTAMP:20260422T213013Z
UID:RVAGeometryDay2026/4
DESCRIPTION:Title: <a href="https://researchseminars.org/talk/RVAGeometryD
 ay2026/4/">New quantum invariants from braiding Verma modules</a>\nby Serg
 ei Gukov (Caltech) as part of Richmond Geometry Day Spring 2026\n\nLecture
  held in Harris Hall 4169.\n\nAbstract\nBraiding of Verma modules for the 
 quantum group $U_q (sl_n)$ leads to a TQFT that associates q-series invari
 ants to 3-manifolds with knots and links. One of the main interests in the
 se invariants is that they are expected to admit categorification\, thus p
 roviding new insights into the mysterious world of smooth 4-manifolds. Bui
 lding on recent works with M.Jagadale and P.Putrov\, we describe what this
  homological lift looks like with mod 2 coefficients\, and what the corres
 ponding moduli spaces look like. Resurgent analysis and compactification d
 ivisors play important roles. We prove that the proposed categorification 
 is invariant under Kirby moves for all weakly negative definite plumbed ma
 nifolds.\n
LOCATION:https://researchseminars.org/talk/RVAGeometryDay2026/4/
END:VEVENT
BEGIN:VEVENT
SUMMARY:Lightning Talk Session
DTSTART:20260207T220000Z
DTEND:20260207T233000Z
DTSTAMP:20260422T213013Z
UID:RVAGeometryDay2026/5
DESCRIPTION:Title: <a href="https://researchseminars.org/talk/RVAGeometryD
 ay2026/5/">Lightning Talk Session</a>\nby Lightning Talk Session as part o
 f Richmond Geometry Day Spring 2026\n\nLecture held in Harris Hall 4169.\n
 Abstract: TBA\n
LOCATION:https://researchseminars.org/talk/RVAGeometryDay2026/5/
END:VEVENT
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