Self-adjoint extensions with Friedrichs lower bound
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Date
2020
Journal Title
Journal ISSN
Volume Title
Publisher
SISSA
Abstract
We produce a simple criterion and a constructive recipe to identify those self-adjoint extensions of a lower semi-bounded symmetric operator on Hilbert space which have the same lower bound as the Friedrichs extension. Applications of this abstract result to a few instructive examples are then discussed.
Description
Keywords
Functional Analysis, Mathematical Physics