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Hodge theory on Cheeger spaces

Authors :
Paolo Piazza
Eric Leichtnam
Rafe Mazzeo
Pierre Albin
Source :
Journal für die reine und angewandte Mathematik (Crelles Journal). 2018:29-102
Publication Year :
2016
Publisher :
Walter de Gruyter GmbH, 2016.

Abstract

We extend the study of the de Rham operator with ideal boundary conditions from the case of isolated conic singularities, as analyzed by Cheeger, to the case of arbitrary stratified pseudomanifolds. We introduce a class of ideal boundary operators and the notion of mezzoperversity, which intermediates between the standard lower and upper middle perversities in intersection theory, as interpreted in this de Rham setting, and show that the de Rham operator with these boundary conditions is Fredholm and has compact resolvent. We also prove an isomorphism between the resulting Hodge and L2 de Rham cohomology groups, and that these are independent of the choice of iterated edge metric. On spaces which admit ideal boundary conditions of this type which are also self-dual, which we call `Cheeger spaces', we show that these Hodge/de Rham cohomology groups satisfy Poincare Duality.<br />v2: Slight changes to improve exposition, v3: Improved discussion of core domain, to appear in Crelle's journal

Details

ISSN :
14355345 and 00754102
Volume :
2018
Database :
OpenAIRE
Journal :
Journal für die reine und angewandte Mathematik (Crelles Journal)
Accession number :
edsair.doi.dedup.....273743e33dc1b44f39a56df51c0c96eb