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SUMMARY:Nikita Nekrasov (Stony Brook U.\, New York\, SCGP)
DTSTART:20210311T151500Z
DTEND:20210311T170000Z
DTSTAMP:20260423T022814Z
UID:LIJC/34
DESCRIPTION:Title: <a href="https://researchseminars.org/talk/LIJC/34/">Le
 fschetz thimbles in sigma models</a>\nby Nikita Nekrasov (Stony Brook U.\,
  New York\, SCGP) as part of London Integrability Journal Club\n\n\nAbstra
 ct\nTwo dimensional sigma models describe (harmonic) maps of Riemann surfa
 ces to Riemannian manifolds. I will present the motivations to study the c
 omplexification of this problem. I will present the novel approach\, devel
 oped in my work with Igor Krichever\, allowing to construct essentially al
 l twisted complexified harmonic maps of two-torus to spheres and projectiv
 e spaces.\n
LOCATION:https://researchseminars.org/talk/LIJC/34/
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