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SUMMARY:Jinmin Wang (Shanghai Center for Mathematical Sciences)
DTSTART:20200602T143000Z
DTEND:20200602T153000Z
DTSTAMP:20260422T151638Z
UID:GoeTop/5
DESCRIPTION:Title: <a href="https://researchseminars.org/talk/GoeTop/5/">A
 pproximation of delocalized eta invariants by their finite analogues</a>\n
 by Jinmin Wang (Shanghai Center for Mathematical Sciences) as part of Göt
 tingen topology and geometry seminar\n\n\nAbstract\nThe delocalized eta in
 variant for self-adjoint elliptic operators was introduced by Lott as a na
 tural extension of the classical eta invariant of Atiyah-Patodi-Singer. In
  this talk\, we will give several results on when the delocalized eta inva
 riant can be approximated by the ones associated with finite-sheeted cover
 ing spaces\, under a necessary assumption of conjugacy distinguishability.
  In the first part\, we will present a result using a K-theoretical approa
 ch of the delocalized eta invariant. In the second part\, we will give a q
 uantized description of conjugacy distinguishability. This is a joint work
  with Zhizhang Xie and Guoliang Yu.\n
LOCATION:https://researchseminars.org/talk/GoeTop/5/
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