Add to ORKGAbstract. Necessary and sufficient conditions for a convolution Volterra operator to be similar in a Sobolev space to the operator Jα are obtained. A criterion of similarity is obtained as well. 1
The construction and study of relations between several classes of operators allow transfer of certa...
Let R() be the algebra generated in Sobolev space W22() by the rational functions with poles outside...
Dans ce mémoire on s'intéresse à quelques problèmes de similarités ainsi qu'au spectre étendu d'un o...
A necessary and sufficient condition is derived for a pair of convolution integral operators to be s...
A general procedure is derived for obtaining sufficient conditions for the similarity of operators T...
AbstractBounded linear operators on separable Banach spaces algebraically similar to the classical V...
AbstractLet k be a field with an involution σ and 〈,〉:V×W→k a non-degenerate sesquilinear form, wher...
Let g(z) be an n-degree polynomial (n≥2). Inspired by Sarason’s result, we introduce the operator T1...
Abstract. We answer a question of Peller by showing that for any c> 1 there exists a power-bounde...
We consider operators of convolution generated by L"1 functions in L"p and various spaces ...
We consider the almost similarity property which is a new class in operator theory and was first int...
AbstractLet k be a field of characteristic two, with involution x↦x¯. Let (V,·) be a finite dimensio...
The problem of finding conditions under which two given operators say A and B have equal spectra has...
We consider operators of convolution generated by $L^1$ functions in $L^p$ and various spaces of alm...
Abstract. The similarity problem for the restrictions of the nonselfadjoint operator pos-sessing abs...
The construction and study of relations between several classes of operators allow transfer of certa...
Let R() be the algebra generated in Sobolev space W22() by the rational functions with poles outside...
Dans ce mémoire on s'intéresse à quelques problèmes de similarités ainsi qu'au spectre étendu d'un o...
A necessary and sufficient condition is derived for a pair of convolution integral operators to be s...
A general procedure is derived for obtaining sufficient conditions for the similarity of operators T...
AbstractBounded linear operators on separable Banach spaces algebraically similar to the classical V...
AbstractLet k be a field with an involution σ and 〈,〉:V×W→k a non-degenerate sesquilinear form, wher...
Let g(z) be an n-degree polynomial (n≥2). Inspired by Sarason’s result, we introduce the operator T1...
Abstract. We answer a question of Peller by showing that for any c> 1 there exists a power-bounde...
We consider operators of convolution generated by L"1 functions in L"p and various spaces ...
We consider the almost similarity property which is a new class in operator theory and was first int...
AbstractLet k be a field of characteristic two, with involution x↦x¯. Let (V,·) be a finite dimensio...
The problem of finding conditions under which two given operators say A and B have equal spectra has...
We consider operators of convolution generated by $L^1$ functions in $L^p$ and various spaces of alm...
Abstract. The similarity problem for the restrictions of the nonselfadjoint operator pos-sessing abs...
The construction and study of relations between several classes of operators allow transfer of certa...
Let R() be the algebra generated in Sobolev space W22() by the rational functions with poles outside...
Dans ce mémoire on s'intéresse à quelques problèmes de similarités ainsi qu'au spectre étendu d'un o...