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SUMMARY:Stuart James Hall (Newcastle University)
DTSTART:20250212T160000Z
DTEND:20250212T170000Z
DTSTAMP:20260423T021332Z
UID:VSGS/104
DESCRIPTION:Title: <a href="https://researchseminars.org/talk/VSGS/104/">R
 igidity to second order of compact irreducible symmetric spaces</a>\nby St
 uart James Hall (Newcastle University) as part of Virtual seminar on geome
 try with symmetries\n\n\nAbstract\nIn the 1980s Koiso showed that only 5 t
 ypes of compact irreducible symmetric space admit infinitesimal Einstein d
 eformations\; he also developed an obstruction to such deformations being 
 integrable to second order but left the calculation of this obstruction on
  these spaces open. I will report on work of the last few years that compu
 tes the obstruction on these spaces and what this says about the rigidity 
 of compact irreducible symmetric spaces.\nThis is joint work with Wafaa Ba
 tat\, Thomas Murphy\, Paul Schwahn\, Uwe Semmelmann\, and James Waldron.\n
LOCATION:https://researchseminars.org/talk/VSGS/104/
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