74 citations · 208 across the 24 of their papers we have counts for
26 papers
A survey of asymptotics of determinants for structured matrices
E. Basor, T. Ehrhardt, J. A. Virtanen
In this survey we show how to produce asymptotics of determinants of structured matrices using operator theory methods. We describe the asymptotics for finite Toeplitz matrices, fi…
Asymptotics of block Toeplitz determinants with piecewise continuous symbols
E. Basor, T. Ehrhardt, J. A. Virtanen
We determine the asymptotics of the block Toeplitz determinants as for matrix-valued piecewise continuous functions with a finitely many…
Asymptotics of bordered Toeplitz determinants and next-to-diagonal Ising correlations
Estelle Basor, Torsten Ehrhardt, Roozbeh Gharakhloo +2
We prove the analogue of the strong Szeg{\H o} limit theorem for a large class of bordered Toeplitz determinants. In particular, by applying our results to the formula of Au-Yang a…
Bounded and compact Toeplitz+Hankel matrices
Torsten Ehrhardt, Raffael Hagger, Jani Virtanen
We show that an infinite Toeplitz+Hankel matrix generates a bounded (compact) operator on with if and only if both …
Finite Section Method for singular integrals with operator-valued PQC-coefficients and a flip
Torsten Ehrhardt, Zheng Zhou
We establish necessary and sufficient conditions for the stability of the finite section method for operators belonging to a certain -algebra of operators acting on the Hilber…
Asymptotics of determinants for finite sections of operators with almost periodic diagonals
Torsten Ehrhardt, Zheng Zhou
Let be a bounded linear operator on whose diagonals are alm…