Michał Wojtylak

Eigenvalues of rank one perturbations of unstructured matrices

Zeros of nonpositive type of generalized Nevanlinna functions with one negative square

Local Definitizability of \({{T^{[\ast]}T}}\) and \({{TT^{{[\ast]}}}}\)

Analysis of Spectral Points of the Operators T[*]T and TT[*] in a Krein Space

On determining the domain of the adjoint operator

Truncations of a class of pseudo-Hermitian operators

The Pair of Operators \({T^{\stackrel{[\!*\!]}{}}T}\) and \({TT^{\stackrel{[\!*\!]}{}}}\): J-Dilations and Canonical Forms

Matrix methods for Padé approximation: Numerical calculation of poles, zeros and residues

A new bound for the distance to singularity of a regular matrix pencil

New lower bound for the distance to singularity of regular matrix pencils