On full asymptotics of real analytic torsions for compact locally symmetric 
orbifolds

Liu, Bingxiao

doi:10.2140/apde.2024.17.1261

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On full asymptotics of real analytic torsions for compact locally symmetric orbifolds

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Liu, Bingxiao
Max Planck Institute for Mathematics, Max Planck Society;

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https://doi.org/10.48550/arXiv.2005.02055
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https://doi.org/10.2140/apde.2024.17.1261
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Citation

Liu, B. (2024). On full asymptotics of real analytic torsions for compact locally symmetric orbifolds. Analysis & PDE, 17(4), 1261-1329. doi:10.2140/apde.2024.17.1261.

Cite as: https://hdl.handle.net/21.11116/0000-000C-FD93-1

Abstract

We consider a certain sequence of flat vector bundles on a compact locally symmetric orbifold, and we evaluate explicitly the associated asymptotic Ray–Singer real analytic torsion. The basic idea is to computing the heat trace via Selberg’s trace formula, so that a key point in this paper is to evaluate the orbital integrals associated with nontrivial elliptic elements. For that purpose, we deduce a geometric localization formula, so that we can rewrite an elliptic orbital integral as a sum of certain identity orbital integrals associated with the centralizer of that elliptic element. The explicit geometric formula of Bismut for semisimple orbital integrals plays an essential role in these computations