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Essentially self-adjoint linear relations in Hilbert spaces

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Abstract

The main aim of this paper is to provide some range-type criteria for the essentially self-adjointness of symmetric linear relations in real or complex Hilbert spaces. The main tool is a matrix whose entries are certain linear relations.

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Acknowledgements

The authors would like to thank the reviewer for his/her thoughtful comments and efforts towards improving the present paper.

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  1. Department of Mathematics and Informatics, “Gheorghe Asachi” Technical University of Iaşi, B-dul Carol I, nr. 11, 700506, Iasi, Romania

    Marcel Roman & Adrian Sandovici

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  1. Marcel Roman
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  2. Adrian Sandovici
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Correspondence to Adrian Sandovici.

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Roman, M., Sandovici, A. Essentially self-adjoint linear relations in Hilbert spaces. Period Math Hung 83, 122–132 (2021). https://doi.org/10.1007/s10998-020-00373-8

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