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SUMMARY:Sasha Sodin (Queen Mary)
DTSTART:20201112T203000Z
DTEND:20201112T213000Z
DTSTAMP:20260423T053138Z
UID:Thouless/1
DESCRIPTION:Title: <a href="https://researchseminars.org/talk/Thouless/1/"
 >The Umpteen Operator</a>\nby Sasha Sodin (Queen Mary) as part of UCI Math
 ematical Physics\n\n\nAbstract\nIt was found in the 1990s that special lin
 ear maps playing a role in the representation theory of the symmetric grou
 p share common features with random matrices. We construct a representatio
 n-theoretic operator which shares some properties with the Anderson model 
 (or\, perhaps\, with magnetic random Schroedinger operators)\, and show th
 at indeed it boasts Lifshitz tails. The proof relies on a close connection
  between the operator and the infinite board version of the fifteen puzzle
 .\nNo background in the representation theory of the symmetric group will 
 be assumed. Based on joint work with Ohad Feldheim.\n
LOCATION:https://researchseminars.org/talk/Thouless/1/
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