Operators and Matrices Volume 9, Issue 1

Yu. I. Karlovich, J. Loreto-Hernández, I. M. Spitkovsky

Factorization of some triangular matrix functions and its applications

09-01 Pages 1-29

Abstract Article

Michael M. H. Pang

On an upper heat kernel bound for second order elliptic operators on bounded regions in R^N

09-02 Pages 31-56

Abstract Article

P. W. Ng

A generalization of the Brown-Pearcy Theorem

09-03 Pages 57-82

Abstract Article

Cristina Diogo

Algebraic properties of the set of operators with 0 in the closure of the numerical range

09-04 Pages 83-93

Abstract Article

Rodica-Mihaela Dăneţ, Marian-Valentin Popescu, Nicoleta Popescu

Simultaneous extensions of a family of linear operators

09-05 Pages 95-112

Abstract Article

Lajos Molnár, Peter Šemrl, Ahmed Ramzi Sourour

Bilocal automorphisms

09-06 Pages 113-120

Abstract Article

G. Krishna Kumar, S. H. Lui

Pseudospectrum and condition spectrum

09-07 Pages 121-145

Abstract Article

András Bátkai, Ágnes Havasi, Róbert Horváth, Dávid Kunszenti-Kovács, Péter L. Simon

PDE approximation of large systems of differential equations

09-08 Pages 147-163

Abstract Article

Florin Pop

On the double commutant expectation property for operator systems

09-09 Pages 165-179

Abstract Article

Hoger Ghahramani

Jordan derivations on block upper triangular matrix algebras

09-10 Pages 181-188

Abstract Article

Béla Nagy

Orthonormal Jordan bases in finite dimensional Hilbert spaces

09-11 Pages 189-201

Abstract Article

A. M. Simões

A transmission problem for the Helmholtz equation with higher order boundary conditions

09-12 Pages 203-223

Abstract Article

Kamila Kliś-Garlicka, Marek Ptak

C-symmetric operators and reflexivity

09-13 Pages 225-232

Abstract Article

Wasin So, Changqing Xu

A simple sufficient condition for complete positivity

09-14 Pages 233-239

Abstract Article