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SUMMARY:Alexander Yong (UIUC)
DTSTART:20220113T123000Z
DTEND:20220113T133000Z
DTSTAMP:20260423T024445Z
UID:ARCSIN/10
DESCRIPTION:Title: <a href="https://researchseminars.org/talk/ARCSIN/10/">
 Newell-Littlewood numbers</a>\nby Alexander Yong (UIUC) as part of ARCSIN 
 - Algebra\, Representations\, Combinatorics and Symmetric functions in INd
 ia\n\n\nAbstract\nThe Newell-Littlewood numbers are defined in terms of th
 e       \nLittlewood-Richardson coefficients from algebraic combinatorics.
  Both \nappear in representation theory as tensor product multiplicities f
 or a\nclassical Lie group. This talk concerns the question: \n\n          
     Which multiplicities are nonzero? \n\nIn 1998\, Klyachko established c
 ommon linear inequalities defining \nboth the eigencone for sums of Hermit
 ian matrices and the saturated \nLittlewood-Richardson cone. We prove some
  analogues of Klyachko's nonvanishing\nresults for the Newell-Littlewood n
 umbers.\n\nThis is joint work with Shiliang Gao (UIUC)\, Gidon Orelowitz (
 UIUC)\, and\nNicolas Ressayre (Universite Claude Bernard Lyon I). The pres
 entation is based on\narXiv:2005.09012\, arXiv:2009.09904\, and arXiv:2107
 .03152.\n
LOCATION:https://researchseminars.org/talk/ARCSIN/10/
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