Regularity in Capacity and the Dirichlet Laplacian |
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Authors: | Markus Biegert Mahamadi Warma |
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Affiliation: | 1. Abteilung Angewandte Analysis, Universit?t Ulm, 89069, Ulm, Germany 2. Department of Mathematics (Rio Piedras Campus), University of Puerto Rico, PO Box 23355, San Juan, PR, 00931-3355, USA
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Abstract: | Given an open set in , we prove that every function in is zero everywhere on the boundary if and only if is regular in capacity. If in addition is bounded, then it is regular in capacity if and only if the mapping from into is injective, where denotes the Perron solution of the Dirichlet problem. Let be the set of all open subsets of which are regular in capacity. Then one can define metrics and on only involving the resolvent of the Dirichlet Laplacian. Convergence in those metrics will be defined to be the local/global uniform convergence of the resolvent of the Dirichlet Laplacian applied to the constant function . We prove that the spaces and are complete and contain the set of all open sets which are regular in the sense of Wiener (or Dirichlet regular) as a closed subset. |
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Keywords: | Dirichlet problem Perron solution capacity Wiener regularity |
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