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SUMMARY:Fedya Manin (UCSB)
DTSTART:20210125T170000Z
DTEND:20210125T180000Z
DTSTAMP:20260423T053140Z
UID:TG_ET/12
DESCRIPTION:Title: <a href="https://researchseminars.org/talk/TG_ET/12/">L
 inear nullhomotopies for maps to spheres</a>\nby Fedya Manin (UCSB) as par
 t of Topology and geometry: extremal and typical\n\n\nAbstract\nI will exp
 lain the following theorem. Let $X$ be a finite complex ($S^m$ is a good e
 xample to keep in mind). Then every nullhomotopic\, $L$-Lipschitz map $X \
 \to S^n$ has a $C(X\,n) \\cdot (L+1)$-Lipschitz nullhomotopy. The proof is
  spread over several papers\, and the full story has never been told in on
 e place. Joint and separate work variously with Chambers\, Dotterrer\, Wei
 nberger\, Berdnikov\, and Guth.\n
LOCATION:https://researchseminars.org/talk/TG_ET/12/
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