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SUMMARY:Nikita Nekrasov (SCGP\, Stony Brook)
DTSTART:20210208T200000Z
DTEND:20210208T210000Z
DTSTAMP:20260423T052955Z
UID:WHCGP/26
DESCRIPTION:Title: <a href="https://researchseminars.org/talk/WHCGP/26/">B
 eauty of the defects</a>\nby Nikita Nekrasov (SCGP\, Stony Brook) as part 
 of Western Hemisphere colloquium on geometry and physics\n\n\nAbstract\nSu
 rface and point-like defects in supersymmetric gauge theories in four dime
 nsions are studied with applications to quantum/classical correspondence. 
 In particular\, the GIL formula for the tau-function of Painleve VI is exp
 lained using the blow-up method in the context of the BPS/CFT corresponden
 ce\, while the spin chain generalisation of Kharchev-Lebedev wavefunction 
 of periodic Toda chain is obtained via wallcrossing. \n\nBased on several 
 works\, in particular on papers in collaboration with Saebyeok Jeong\; Nor
 ton Lee\; Oleksandr Tsymbaliuk\; as well as S. Jeong and N. Lee\n
LOCATION:https://researchseminars.org/talk/WHCGP/26/
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