Add to ORKGGeometric properties of the numerical ranges of operators on an indefinite inner product space are investigated. In particular, classes of matrices are presented such that the boundary generating curves of the J-numerical range are hy-perbolical. The curvature of the J-numerical range at a boundary point is studied, generalizing results of Fiedler on the classical numerical range
The notion of the shell of a Hilbert space operator, which is a useful generalization (proposed by W...
AbstractSome techniques for the study of the algebraic curve C(A) which generates the numerical rang...
This book describes recent developments as well as some classical results regarding holomorphic mapp...
Geometric properties of the numerical ranges of operators on an indefinite inner product space are i...
AbstractGeometric properties of the numerical ranges of operators on an indefinite inner product spa...
In this article, numerical ranges associated with operators on an indefinite inner product space are...
In this paper, numerical ranges associated to operators on an indenite inner product space are inves...
summary:The point equation of the associated curve of the indefinite numerical range is derived, fol...
International Conference on Engineering and Mathematics (ENMA'2007), July 9-11, 2007 - Bilbao, Spain...
Abstract: In this article, tracial numerical ranges associated with matrices in an indefinite inner ...
We study the relationship between operators and their numerical ranges. The main results are as foll...
Copyright © 2008 Elsevier Inc. All rights reserved.We focus on complex 3×3 matrices whose indefinite...
AbstractWe present results connecting the shape of the numerical range to intrinsic properties of a ...
AbstractWe investigate the shape of the numerical range. A criterion for the numerical range of a ma...
AbstractConsider a linear pencil Aλ+B, where A and B are n×n complex matrices. The numerical range o...
The notion of the shell of a Hilbert space operator, which is a useful generalization (proposed by W...
AbstractSome techniques for the study of the algebraic curve C(A) which generates the numerical rang...
This book describes recent developments as well as some classical results regarding holomorphic mapp...
Geometric properties of the numerical ranges of operators on an indefinite inner product space are i...
AbstractGeometric properties of the numerical ranges of operators on an indefinite inner product spa...
In this article, numerical ranges associated with operators on an indefinite inner product space are...
In this paper, numerical ranges associated to operators on an indenite inner product space are inves...
summary:The point equation of the associated curve of the indefinite numerical range is derived, fol...
International Conference on Engineering and Mathematics (ENMA'2007), July 9-11, 2007 - Bilbao, Spain...
Abstract: In this article, tracial numerical ranges associated with matrices in an indefinite inner ...
We study the relationship between operators and their numerical ranges. The main results are as foll...
Copyright © 2008 Elsevier Inc. All rights reserved.We focus on complex 3×3 matrices whose indefinite...
AbstractWe present results connecting the shape of the numerical range to intrinsic properties of a ...
AbstractWe investigate the shape of the numerical range. A criterion for the numerical range of a ma...
AbstractConsider a linear pencil Aλ+B, where A and B are n×n complex matrices. The numerical range o...
The notion of the shell of a Hilbert space operator, which is a useful generalization (proposed by W...
AbstractSome techniques for the study of the algebraic curve C(A) which generates the numerical rang...
This book describes recent developments as well as some classical results regarding holomorphic mapp...