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Coherent sheaves, superconnection, and the Riemann-Roch-Grothendieck formula.

  • Speaker:Shu Shen (IMJ-PRG)
  • TIME:April 27, 2023 21:00-22:00 Beijing time (16:00-17:00 St Petersburg time)
  • LOCATION:online

Recording: https://disk.pku.edu.cn:443/link/C7DCC1DD2C9C640F862DE94FD472BFC5
Valid Until: 2027-05-31 23:59

 

Abstract: In this talk, I will explain a construction of Chern character for coherent sheaves on a closed complex manifold with values in Bott-Chern cohomology. I will also show a corresponding Riemann-Roch-Grothendieck formula, which holds for general holomorphic maps between closed non-Kahler manifolds. Our proof is based on two fundamental objects: the superconnection and the hypoelliptic deformations. This is a joint work with J.-M. Bismut and Z. Wei arXiv:2102.08129.

 

Bio: Shu Shen is a lecturer at Sorbonne University and a researcher at IMJ-PRG. He received his MA at Ecole Polytechnique in 2010 and PhD at Paris-Sud University in 2014. He had research and postdoc experiences at Max-Plank (Bonn), Humboldt University and Paris-Sud University. Shen’s main research interests are geometry and analysis of manifolds. https://webusers.imj-prg.fr/~shu.shen/

 

 

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