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SUMMARY:Alexandros Eskenazis (Sorbonne)
DTSTART:20241203T140000Z
DTEND:20241203T153000Z
DTSTAMP:20260423T023018Z
UID:WienGAGT/41
DESCRIPTION:Title: <a href="https://researchseminars.org/talk/WienGAGT/41/
 ">Metric rigidity of nonpositive curvature</a>\nby Alexandros Eskenazis (S
 orbonne) as part of Vienna Geometry and Analysis on Groups Seminar\n\n\nAb
 stract\nWe shall present a novel rigidity theorem for metric transforms of
  nonpositively curved Alexandrov spaces. We will then use this result to c
 onstruct counterexamples to previously conjectured metric formulations of 
 Kwapień's theorem from Banach space theory. Time permitting\, further geo
 metric and algorithmic applications will also be discussed. The talks will
  be based on joint work with M. Mendel (Open University of Israel) and A. 
 Naor (Princeton).\n
LOCATION:https://researchseminars.org/talk/WienGAGT/41/
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