Twisted Analytic Torsion
Abstract
We review the Reidemeister torsion, Ray-Singer's analytic torsion and the Cheeger-M"uller theorem. We describe the analytic torsion of the de Rham complex twisted by a flux form introduced by the current authors and recall its properties. We define a new twisted analytic torsion for the complex of invariant differential forms on the total space of a principal circle bundle twisted by an invariant flux form. We show that when the dimension is even, such a torsion is invariant under certain deformation of the metric and the flux form. Under T-duality which exchanges the topology of the bundle and the flux form and the radius of the circular fiber with its inverse, the twisted torsions of invariant forms are inverse to each other for any dimension.
Cite
@article{arxiv.0912.2184,
title = {Twisted Analytic Torsion},
author = {Varghese Mathai and Siye Wu},
journal= {arXiv preprint arXiv:0912.2184},
year = {2010}
}
Comments
10 pages, based on a talk at the International Conference on Complex Analysis and Related Topics, August 2009, Beijing, to appear in the special volume in honor of Prof. Yang Lo on the occasion of his 70th birthday; correction of typos and some other minor changes