Krein-Visik-Birman self-adjoint extension theory revisited
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Date
2017
Authors
Gallone, Matteo
Michelangeli, Alessandro
Ottolini, Andrea
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Abstract
The core results of the so-called KreIn-Visik-Birman theory of
self-adjoint extensions of semi-bounded symmetric operators are reproduced,
both in their original and in a more modern formulation, within a
comprehensive discussion that includes missing details, elucidative steps,
and intermediate results of independent interest.
Description
Keywords
Self-adjoint operators, self-adjoint extensions, von Neumann extension theory, Krein-Visik-Birman extension theory