Showing papers by "William Desmond Evans published in 2019"
TL;DR: In this article, the connections between the von Neumann theory of extensions and characterisations of positive extensions via decompositions of the domain of the associated form were studied and applied to elliptic second order differential operators.
Abstract: In this paper we consider extensions of positive operators. We study the connections between the von Neumann theory of extensions and characterisations of positive extensions via decompositions of the domain of the associated form. We apply the results to elliptic second order differential operators and look in particular at examples of the Laplacian on a disc and the Aharonov–Bohm operator.
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