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SUMMARY:S-duality in twistor space - Sergei Alexandrov (Université de Mon
 tpellier)
DTSTART:20240910T103000Z
DTEND:20240910T113000Z
UID:TALK219562@talks.cam.ac.uk
DESCRIPTION:Twistor space provides an efficient description of quaternion-
 Kahler (QK) manifolds. In physics\, the latter appear as supergravity modu
 li spaces and often carry an isometric action of the S-duality group SL(2\
 ,Z). I&rsquo\;ll show that a lift of S-duality to the twistor space gives 
 rise to a rich and interesting structure\, and describe its consequences f
 or a class of QK manifolds arising in Calabi-Yau string compactifications.
  In particular\, this includes mock modularity of generating functions of 
 DT invariants and the weak/strong coupling duality of topological string p
 artition function. &nbsp\;
LOCATION:Seminar Room 1\, Newton Institute
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