We prove a realization theorem for rational functions of several complex variables which
extends the main theorem of Bessmertnyĭ (in: Alpay, Gohberg, Vinnikov (eds) Interpolation …

We provide a new approach to the following multidimensional realizability problem: Can an
arbitrary square matrix, whose entries are from the field of multivariate rational functions over …

We prove the (generalized) principal pivot transform is matrix monotone, in the sense of the
Löwner ordering, under minimal hypotheses. This improves on the recent results of Pascoe …

In this paper, we consider the spectral theory of linear differential-algebraic equations
(DAEs) for periodic DAEs in canonical form, ie, J df dt+ H f= λ W f, where J is a constant skew …

The scientific focus and main objective of the PIs research project was on the development
of an effective theory of broadband absorption suppression in magnetic composites. During …