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Some remarks on the Krein--von Neumann extension of different Laplacians (1402.6737v1)
Published 26 Feb 2014 in math.FA and math.AP
Abstract: We discuss the Krein--von Neumann extensions of three Laplacian-type operators -- on discrete graphs, quantum graphs, and domains. In passing we present a class of one-dimensional elliptic operators such that for any $n\in \mathbb N$ infinitely many elements of the class have $n$-dimensional null space.
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