Harmonic forms on manifolds with edges

Eugenie Hunsicker; Rafe Mazzeo

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Harmonic forms on manifolds with edges

Eugenie Hunsicker·Rafe Mazzeo

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Abstract

Let $(X,g)$ be a compact Riemannian stratified space with simple edge singularity. Thus a neighbourhood of the singular stratum is a bundle of truncated cones over a lower dimensional compact smooth manifold. We calculate the various polynomially weighted de Rham cohomology spaces of $X$, as well as the associated spaces of harmonic forms. In the unweighted case, this is closely related to recent work of Cheeger and Dai \cite{CD}. Because the metric $g$ is incomplete, this requires a consideration of the various choices of ideal boundary conditions at the singular set. We also calculate the space of $L^2$ harmonic forms for any complete edge metric on the regular part of $X$.

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Eugenie Hunsicker, Rafe Mazzeo. 2005-03-16. Harmonic forms on manifolds with edges. https://arxiv.org/abs/math/0503318

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