AbstractFor a finite-dimensional linear subspace S⊆L(V,W) and a positive integer k, the k-reflexivity defect of S is defined by rdk(S)=dim(Refk(S)/S), where Refk(S) is the k-reflexive closure of S. We study this quantity for two-dimensional spaces of operators and for single generated algebras and their commutants
AbstractA linear operator A is called reflexive if the only operators that leave invariant the invar...
A definition of the reflexive index of a family of (closed) subspaces of a complex, separable Hilber...
A definition of the reflexive index of a family of (closed) subspaces of a complex, separable Hilber...
For a finite-dimensional linear subspace ▫{$mathscr{S}} subseteq {mathscr{L}} (V,W)$▫ and a positive...
AbstractLet X be a finite-dimensional complex vector space. We give an explicit formula for the refl...
AbstractA linear operator A is called reflexive if the only operators that leave invariant the invar...
AbstractFor a finite-dimensional linear subspace S⊆L(V,W) and a positive integer k, the k-reflexivit...
Abstract. We show that any n-dimensional subspace of B(H) is [ 2n]-reflexive, where [t] denotes the ...
AbstractThere is a close connection between separating vectors and reflexivity. But the existence of...
AbstractWe obtain two results on the existence of large subspaces of operators of small rank in loca...
AbstractLet X be a finite-dimensional complex vector space. We give an explicit formula for the refl...
We prove that a finite distributive lattice of subspaces of a vector space is reflexive and we deter...
AbstractWe introduce a new version of reflexivity, akin to approximate reflexivity, called Asymptoti...
The purpose of this talk is twofold. In the first part (sections 1-4) I will briefly describe the no...
AbstractA linear subspace S of an algebra G is called reflexive if a ∈ S whenever a ∈ G and paq = 0 ...
AbstractA linear operator A is called reflexive if the only operators that leave invariant the invar...
A definition of the reflexive index of a family of (closed) subspaces of a complex, separable Hilber...
A definition of the reflexive index of a family of (closed) subspaces of a complex, separable Hilber...
For a finite-dimensional linear subspace ▫{$mathscr{S}} subseteq {mathscr{L}} (V,W)$▫ and a positive...
AbstractLet X be a finite-dimensional complex vector space. We give an explicit formula for the refl...
AbstractA linear operator A is called reflexive if the only operators that leave invariant the invar...
AbstractFor a finite-dimensional linear subspace S⊆L(V,W) and a positive integer k, the k-reflexivit...
Abstract. We show that any n-dimensional subspace of B(H) is [ 2n]-reflexive, where [t] denotes the ...
AbstractThere is a close connection between separating vectors and reflexivity. But the existence of...
AbstractWe obtain two results on the existence of large subspaces of operators of small rank in loca...
AbstractLet X be a finite-dimensional complex vector space. We give an explicit formula for the refl...
We prove that a finite distributive lattice of subspaces of a vector space is reflexive and we deter...
AbstractWe introduce a new version of reflexivity, akin to approximate reflexivity, called Asymptoti...
The purpose of this talk is twofold. In the first part (sections 1-4) I will briefly describe the no...
AbstractA linear subspace S of an algebra G is called reflexive if a ∈ S whenever a ∈ G and paq = 0 ...
AbstractA linear operator A is called reflexive if the only operators that leave invariant the invar...
A definition of the reflexive index of a family of (closed) subspaces of a complex, separable Hilber...
A definition of the reflexive index of a family of (closed) subspaces of a complex, separable Hilber...
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