DOIAbstract
AbstractWe show that there are operators on a five-dimensional Hilbert space which are not tridiagonal, and that there are compact operators and normal operators on separable infinite-dimensional spaces which are not band-diagonal
AbstractWe show that there are operators on a five-dimensional Hilbert space which are not tridiagonal, and that there are compact operators and normal operators on separable infinite-dimensional spaces which are not band-diagonal
Brown, Douglas and Fillmore that an essentially normal operator on a Hilbert space is of the form “n...
Let C be a conjugation on a complex separable Hilbert space H. A bounded linear operator T is said t...
The book presents an introduction to the geometry of Hilbert spaces and operator theory, targeting g...
We show that there are operators on a five-dimensional Hilber-t space which are not tridiagonal, and...
AbstractWe show that there are operators on a five-dimensional Hilbert space which are not tridiagon...
Given a complex, separable Hilbert space H, we characterize those operators for which kP T(I − P)k =...
AbstractLet H be a separable infinite dimensional Hilbert space. We construct a block-diagonal, henc...
We study the existence and characterization properties of compact Hermitian operators C on a Hilbert...
Abstract. Given a finite set X ⊆ R we characterize the diagonals of self-adjoint operators with spec...
Very often the operators that we study appear most naturally in highly non-diagonal representation. ...
We construct a Hereditarily Indecomposable Banach space Xd with a Schauder basis (en)n∈N on which th...
The primarily objective of the book is to serve as a primer on the theory of bounded linear operator...
AbstractNatural conditions are imposed on spectra of products and sums of operators. This results in...
Natural conditions are imposed on spectra of products and sums of operators. This results in charact...
We prove the Weyl-von Neumann-Berg theorem for right linear operators (not necessarily bounded) in a...
Brown, Douglas and Fillmore that an essentially normal operator on a Hilbert space is of the form “n...
Let C be a conjugation on a complex separable Hilbert space H. A bounded linear operator T is said t...
The book presents an introduction to the geometry of Hilbert spaces and operator theory, targeting g...
We show that there are operators on a five-dimensional Hilber-t space which are not tridiagonal, and...
AbstractWe show that there are operators on a five-dimensional Hilbert space which are not tridiagon...
Given a complex, separable Hilbert space H, we characterize those operators for which kP T(I − P)k =...
AbstractLet H be a separable infinite dimensional Hilbert space. We construct a block-diagonal, henc...
We study the existence and characterization properties of compact Hermitian operators C on a Hilbert...
Abstract. Given a finite set X ⊆ R we characterize the diagonals of self-adjoint operators with spec...
Very often the operators that we study appear most naturally in highly non-diagonal representation. ...
We construct a Hereditarily Indecomposable Banach space Xd with a Schauder basis (en)n∈N on which th...
The primarily objective of the book is to serve as a primer on the theory of bounded linear operator...
AbstractNatural conditions are imposed on spectra of products and sums of operators. This results in...
Natural conditions are imposed on spectra of products and sums of operators. This results in charact...
We prove the Weyl-von Neumann-Berg theorem for right linear operators (not necessarily bounded) in a...
Brown, Douglas and Fillmore that an essentially normal operator on a Hilbert space is of the form “n...
Let C be a conjugation on a complex separable Hilbert space H. A bounded linear operator T is said t...
The book presents an introduction to the geometry of Hilbert spaces and operator theory, targeting g...
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