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When does the Weyl–von Neumann Theorem hold?
Online Contents | 2017|Keywords: 47B25, 47B25 (primary) -
Direct sums of trace maps and self-adjoint extensions
Free accessSpringer Verlag | 2014|Keywords: 47B25 -
Diffusion phenomena for the wave equation with space-dependent damping in an exterior domain
Online Contents | 2016|Keywords: 47B25 -
A model of a boundary composed of the Helmholtz resonators
Taylor & Francis Verlag | 2021|Keywords: 47B25 -
A nonstandard proof of the spectral theorem for unbounded self-adjoint operators
Elsevier | 2021|Keywords: 47B25 -
The Schur–Horn theorem for unbounded operators with discrete spectrum
Online Contents | 2017|Keywords: 47B25 (primary) -
The von Neumann Problem for Nonnegative Symmetric Operators
Springer Verlag | 2005|Keywords: 47B25 -
Boundary systems and (skew‐)self‐adjoint operators on infinite metric graphs
Wiley | 2015|Keywords: 47B25 -
Hardy inequalities for functions vanishing at negligible sets and its applications
Taylor & Francis Verlag | 2016|Keywords: Secondary: 47B25 -
On the adjoint of Hilbert space operators
Free accessTaylor & Francis Verlag | 2019|Keywords: 47B25