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BEGIN:VEVENT
SUMMARY:Arrive and Welcome Message
DTSTART:20260207T170000Z
DTEND:20260207T173000Z
DTSTAMP:20260404T094834Z
UID:RVAGeometryDay2026/1
DESCRIPTION:Title: <a href="https://stable.researchseminars.org/talk/RVAGe
 ometryDay2026/1/">Arrive and Welcome Message</a>\nby Arrive and Welcome Me
 ssage as part of Richmond Geometry Day Spring 2026\n\nLecture held in Harr
 is Hall 4169.\nAbstract: TBA\n
LOCATION:https://stable.researchseminars.org/talk/RVAGeometryDay2026/1/
END:VEVENT
BEGIN:VEVENT
SUMMARY:Ryan Stees (University of Virginia)
DTSTART:20260207T173000Z
DTEND:20260207T181500Z
DTSTAMP:20260404T094834Z
UID:RVAGeometryDay2026/2
DESCRIPTION:Title: <a href="https://stable.researchseminars.org/talk/RVAGe
 ometryDay2026/2/">Almost-concordance of knots</a>\nby Ryan Stees (Universi
 ty of Virginia) as part of Richmond Geometry Day Spring 2026\n\nLecture he
 ld in Harris Hall 4169.\n\nAbstract\nIn this talk\, we will consider conco
 rdance of knots modulo local knotting\, or almost-concordance\, in non-sim
 ply-connected 3-manifolds. Conjecturally\, the number of almost-concordanc
 e classes of knots representing a fixed free homotopy class in a fixed 3-m
 anifold is infinite\, aside from one type of exceptional case. We will dis
 cuss a recipe for constructing large families of pairwise homotopic knots 
 in aspherical 3-manifolds which are distinguished up to almost-concordance
  by extensions of Milnor’s link invariants.\n
LOCATION:https://stable.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:20260404T094834Z
UID:RVAGeometryDay2026/3
DESCRIPTION:Title: <a href="https://stable.researchseminars.org/talk/RVAGe
 ometryDay2026/3/">Rigidity of some quantum representations of mapping clas
 s groups via Ocneanu rigidity</a>\nby Pierre Godfard (The University of No
 rth Carolina at Chapel Hill) as part of Richmond Geometry Day Spring 2026\
 n\nLecture held in Harris Hall 4169.\n\nAbstract\nThe property (T) conject
 ure predicts that finite-dimensional unitary representations of mapping cl
 ass groups $\\mathrm{Mod}(S_g)$ for $g \\geq 3$ are rigid (in the sense th
 at they admit no infinitesimal deformations). While extensively studied fo
 r finite image representations\, where it is known as the Ivanov conjectur
 e\, much less is known for infinite image representations.\n\nWe establish
  rigidity of quantum representations arising from SU(2) and SO(3) modular 
 categories\, for closed surfaces of genus $g\\geq 7$ and at levels $\\ell=
 p-2$ where $p\\geq 5$ is prime. These are natural infinite image examples 
 arising via the Reshetikhin-Turaev construction from unitary modular fusio
 n categories.\n\nOur strategy exploits Ocneanu rigidity\, which asserts th
 at quantum representations admit no deformations as quantum representation
 s. We prove that any infinitesimal deformation necessarily remains quantum
 \, hence is trivial. The proof combines fusion rules of modular functors w
 ith Hodge theory on twisted moduli spaces of curves--certain Kähler compa
 ct orbifolds whose fundamental groups are quotients of mapping class group
 s.\n
LOCATION:https://stable.researchseminars.org/talk/RVAGeometryDay2026/3/
END:VEVENT
BEGIN:VEVENT
SUMMARY:Sergei Gukov (Caltech)
DTSTART:20260207T203000Z
DTEND:20260207T213000Z
DTSTAMP:20260404T094834Z
UID:RVAGeometryDay2026/4
DESCRIPTION:Title: <a href="https://stable.researchseminars.org/talk/RVAGe
 ometryDay2026/4/">New quantum invariants from braiding Verma modules</a>\n
 by Sergei Gukov (Caltech) as part of Richmond Geometry Day Spring 2026\n\n
 Lecture held in Harris Hall 4169.\n\nAbstract\nBraiding of Verma modules f
 or the quantum group $U_q (sl_n)$ leads to a TQFT that associates q-series
  invariants to 3-manifolds with knots and links. One of the main interests
  in these invariants is that they are expected to admit categorification\,
  thus providing new insights into the mysterious world of smooth 4-manifol
 ds. Building on recent works with M.Jagadale and P.Putrov\, we describe wh
 at this homological lift looks like with mod 2 coefficients\, and what the
  corresponding moduli spaces look like. Resurgent analysis and compactific
 ation divisors play important roles. We prove that the proposed categorifi
 cation is invariant under Kirby moves for all weakly negative definite plu
 mbed manifolds.\n
LOCATION:https://stable.researchseminars.org/talk/RVAGeometryDay2026/4/
END:VEVENT
BEGIN:VEVENT
SUMMARY:Lightning Talk Session
DTSTART:20260207T220000Z
DTEND:20260207T233000Z
DTSTAMP:20260404T094834Z
UID:RVAGeometryDay2026/5
DESCRIPTION:Title: <a href="https://stable.researchseminars.org/talk/RVAGe
 ometryDay2026/5/">Lightning Talk Session</a>\nby Lightning Talk Session as
  part of Richmond Geometry Day Spring 2026\n\nLecture held in Harris Hall 
 4169.\nAbstract: TBA\n
LOCATION:https://stable.researchseminars.org/talk/RVAGeometryDay2026/5/
END:VEVENT
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