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DTSTART:20230312T070000
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DTSTART;TZID=America/Toronto:20240111T143000
SEQUENCE:0
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DTEND;TZID=America/Toronto:20240111T153000
URL:https://uwaterloo.ca/pure-mathematics/events/geometry-topology-seminar-
 144
SUMMARY:Geometry & Topology Seminar
CLASS:PUBLIC
DESCRIPTION:LAWRENCE MOUILLÉ\, SYRACUSE UNIVERSITY\n\n\"POSITIVE INTERMEDI
 ATE RICCI CURVATURE WITH MAXIMAL SYMMETRY RANK\"\n\nThe Grove-Searle Maxim
 al Symmetry Rank Theorem (MSRT) is a\nfoundational result in the study of 
 manifolds with positive sectional\ncurvature and large isometry groups. It
  provides a classification of\nclosed\, positively curved manifolds that a
 dmit isometric actions by\ntori of large rank. In this talk\, I will prese
 nt progress towards\nextending the MSRT to positive intermediate Ricci cur
 vature\, a\ncondition that interpolates between positive sectional curvatu
 re and\npositive Ricci curvature. Grove and Searle were able to employ\nco
 ncavity of distance functions to establish their MSRT\, but this\nfeature 
 is not available for positive intermediate Ricci curvature. I\nwill discus
 s how we can overcome this barrier using a strengthening of\nWilking's Con
 nectedness Lemma. A portion of this talk is from joint\nwork with Lee Kenn
 ard.\n\nMC 5417
DTSTAMP:20260506T175153Z
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