Defines and studies the essential numerical range We(T) for unbounded Hilbert space operators, showing it captures spectral pollution in projection and truncation approximations.
Neumann-Dirichlet maps and analysis of spectral pollution for non-self-adjoint elliptic PDEs with real essential spectrum
1 Pith paper cite this work. Polarity classification is still indexing.
1
Pith paper citing it
fields
math.SP 1years
2019 1verdicts
UNVERDICTED 1representative citing papers
citing papers explorer
-
The essential numerical range for unbounded linear operators
Defines and studies the essential numerical range We(T) for unbounded Hilbert space operators, showing it captures spectral pollution in projection and truncation approximations.