Cohomology of the discrete de Rham complex on domains of general topology
Résumé
In this work we prove that, for a general polyhedral domain of $\Real^3$, the cohomology spaces of the discrete de Rham complex of [Di Pietro and Droniou, An arbitrary-order discrete de Rham complex on polyhedral meshes: Exactness, Poincaré inequalities, and consistency, Found. Comput. Math., 2021, DOI: 10.1007/s10208-021-09542-8] are isomorphic to those of the continuous de Rham complex.This is, to the best of our knowledge, the first result of this kind for an arbitrary-order complex built from a general polyhedral mesh.
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