Intersection torsion and analytic torsion of spaces with conical singularities

Autor:	Hartmann, Luiz, Spreafico, Mauro
Rok vydání:	2020
Předmět:	Mathematics - Spectral Theory Mathematics - Algebraic Topology Mathematics - Differential Geometry 58J52 57Q10
Druh dokumentu:	Working Paper
Popis:	We prove an extension of the Cheeger-M\"{u}ller theorem to spaces with isolated conical singularities: the $L^2$-analytic torsion coincides with the Ray-Singer intersection torsion on an even dimensional space, and they are trivial, while the ratio is non trivial on an odd dimensional space, and the anomaly depends only on the link of the singularities. For this aim, we develop on one side a combinatorial cellular theory whose homology coincides with the intersection homology of Gregory and Macpherson, and where the Ray-Singer intersection torsion is well defined. On the other side, we elaborate the spectral theory for the Hodge-Laplace operator on the square integrable forms on a space with conical singularities {\it \'a la} Cheeger, and we extend the classical results of the Hodge theory and the analytic torsion. Comment: Some misprints corrected, in special, we add the Remark 10.33
Databáze:	arXiv
Externí odkaz:	http://arxiv.org/abs/2001.07801 Zobrazit plný text záznamu View this record from Arxiv