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URL:https://uwaterloo.ca/pure-mathematics/events/geometry-topology-seminar-
 dominik-gutwein-moduli-space
SUMMARY:Geometry & Topology Seminar | Dominik Gutwein | The moduli space of
 \nconically singular SU(3)-instantons
CLASS:PUBLIC
DESCRIPTION:DOMINIK GUTWEIN (UNIVERSITÄT HAMBURG) \n\n_The moduli space of
  conically singular SU(3)-instantons_ \nInstantons over manifolds with spe
 cial holonomy are a distinguished\nclass of connections on principal bundl
 es. In their seminal paper from\n1998 Donaldson and Thomas envisioned inva
 riants of special holonomy\nmanifolds based on the moduli space of such in
 stantons. However\, a\nrigorous construction of these invariants faces for
 midable challenges\narising from the possible non-compactness of this modu
 li space. One\nsource of non-compactness comes from the formation of non-r
 emovable\nsingularities\, that is\, a sequence of instantons might converg
 e to an\ninstanton that is singular along a subset of the underlying manif
 old.\nIn this talk\, I will focus on instantons over 6-manifolds with\nSU(
 3)-structures that have isolated singularities of conical type. In\npartic
 ular\, I will discuss their moduli space\, its structure\, and its\nvirtua
 l dimension. This talk is based on joint work with Yuanqi Wang. \nMC 5417
DTSTAMP:20260923T193155Z
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