Adiabatic limit, Witten deformation and analytic torsion forms

Date: 
2018/12/11 Tue 15:00 - 16:30
Room: 
Room 609, Building No.6
Speaker: 
Yeping Zhang
Affiliation: 
Kyoto University
Abstract: 

Bismut and Lott constructed analytic torsion forms, which extends the Ray-Singer analytic torsion. It remains an open question whether analytic torsion forms satisfy Igusa's axiomatization for higher torsion invariants.
In this talk, I state a gluing formula for analytic torsion forms, which leads to a positive answer to the question. This is a joint work with Martin Puchol and Jialin Zhu. The proof is based on adiabatic limit and Witten deformation.