Ion Zaballa

Professor
Departamento de Matemática Aplicada, Estadística e Investigación Operativa
Universidad del País Vasco-Euskal Herriko Unibertsitatea
E-mail: ion.zaballa@ehu.es
Page: http://www.ehu.es/izaballa/

Fields of interest:

Theory of Matrices, Mathematical Theory of Linear Control Systems, Matrix Inverse Problems, Numerical Linear Algebra

Recent publications:

I. Baragaña, F. Puerta, I. Zaballa.
Differentiable Structure of Realizable Markov Parameters.
Systems and Control Letters. In press. DOI: 10.1016/j.sysconle.2013.06.006

P. Lancaster, I. Zaballa:
On the Sign Characteristic of Self-Adjoint Matrix Polynomials.
Operator Theory Special Volumen dedicated to Leonid Lerer’s 70th birday. In press.

L. Taslaman, F. Tisseur, I. Zaballa:
Triangularizing Matrix Polynomials.
Linear Algebra and its Applications. In press. http://dx.doi.org/10.1016/j.laa.2013.05.006

F. Tisseur, I. Zaballa.
Triangularizing Quadratic Matrix Polynomials.
SIAM on Matrix Analysis and Applications. Available on line. DOI: 10.1137/120867640.

A. Amparan, S. Marcaida, I. Zaballa.
On the structure invariants of proper rational matrices with prescribed finite poles.
Linear and Multilinear Algebra.. DOI:10.1080/03081087.2012.758365

I. Baragaña, F. Puerta, I. Zaballa.
Parametrising the solutions of the generalised partial realisation problem through and atlas of coordinates.
International Journal of Control 86 (1), 54-69 ,2013.

P. Lancaster, U. Prells, I. Zaballa:
An orthogonality property for real symmetric matrix polynomials with application to the inverse problem.
Operators and Matrices. 7 (2) 357-380. (2013)

S. D. Garvey, P. Lancaster, A. Popov, U. Prells, I. Zaballa.
Filters connecting isospectral quadratic systems systems.
Linear Algebra and its Applications. 438, 1497-1516 (2013).