8 citations · 22 across the 8 of their papers we have counts for
Showing 2014Show all
3 papers · 1 filter
math.SP2014★ 4 cited
Spectral properties of unbounded J-self-adjoint matrices
Matthias Langer, Michael Strauss
We study the spectrum of unbounded J-self-adjoint block operator matrices. In particular, we prove enclosures for the spectrum, provide a sufficient condition for the spectrum bein…
math.SP2014
A new approach to spectral approximation
Michael Strauss
A new technique for approximating eigenvalues and eigenvectors of a self-adjoint operator is presented. The method does not incur spectral pollution, uses trial spaces from the for…
math.SP2014★ 1 cited
Spectral enclosure and superconvergence for eigenvalues in gaps
James Hinchcliffe, Michael Strauss
We consider the problem of how to compute eigenvalues of a self-adjoint operator when a direct application of the Galerkin (finite-section) method is unreliable. The last two decad…