English

General perversities and L^2 de Rham and Hodge theorems for stratified pseudomanifolds

Differential Geometry 2012-06-07 v2 Algebraic Topology Geometric Topology

Abstract

Given a compact stratified pseudomanifold with a Thom-Mather stratification and a class of riemannian metrics over its regular part, we study the relationships between the L2L^{2} de Rham and Hodge cohomology and the intersection cohomology of XX associated to some perversities. More precisely, to a kind of metric which we call \emph{quasi edge with weights}, we associate two general perversities in the sense of G. Friedman, pgp_{g} and its dual qgq_{g}. We then show that the absolute L2L^{2} Hodge cohomology is isomorphic to the maximal L2L^{2} de Rham cohomology and this is in turn isomorphic to the intersection cohomology associated to the perversity qgq_{g}. Moreover we prove that the relative L2L^{2} Hodge cohomology is isomorphic to the minimal L2L^{2} de Rham cohomology and this is in turn isomorphic to the intersection cohomology associated to the perversity pgp_{g}.

Keywords

Cite

@article{arxiv.1107.3972,
  title  = {General perversities and L^2 de Rham and Hodge theorems for stratified pseudomanifolds},
  author = {Francesco Bei},
  journal= {arXiv preprint arXiv:1107.3972},
  year   = {2012}
}

Comments

Final version, to appear in Bulletin des Sciences Math\'ematiques