Calabi-Yau volumes and Reflexive Polytopes

55 mins 5 secs,  802.44 MB,  MPEG-4 Video  640x360,  29.97 fps,  44100 Hz,  1.94 Mbits/sec
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Description: He, Y-H (City University, London, University of Oxford)
Friday 31st March 2017 - 14:30 to 15:30
 
Created: 2017-04-04 10:24
Collection: Operator algebras: subfactors and their applications
Publisher: Isaac Newton Institute
Copyright: He, Y-H
Language: eng (English)
Distribution: World     (downloadable)
Explicit content: No
Aspect Ratio: 16:9
Screencast: No
Bumper: UCS Default
Trailer: UCS Default
 
Abstract: We study various geometrical quantities for Calabi-Yau varieties realized as cones over Gorenstein Fano varieties in various dimensions, obtained as toric varieties from reflexive polytopes.
One chief inspiration comes from the equivalence of a-maximization and volume-minimization in for Calabi-Yau threefolds, coming from AdS5/CFT4 correspondence in physics.
We arrive at explicit combinatorial formulae for many topological quantities and conjecture new bounds to the Sasaki-Einstein volume function with respect to these quantities.
Based on joint work with Rak-Kyeong Seong and Shiing-Tung Yau.
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