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math.SP2015
Coburn's Lemma and the Finite Section Method for Random Jacobi Operators
Simon N. Chandler-Wilde, Marko Lindner
We study the spectra and pseudospectra of finite and infinite tridiagonal random matrices, in the case where each of the diagonals varies over a separate compact set, say $U,V,W\su…
math.FA2015
Essential pseudospectra and essential norms of band-dominated operators
Raffael Hagger, Marko Lindner, Markus Seidel
An operator on an -space is called band-dominated if it can be approximated, in the operator norm, by operators with a banded matrix representation. The coset of in th…