Results 1 to 10 of about 233 (39)

Invariant linear manifolds for CSL-algebras and nest algebras [PDF]

open access: yesProceedings of the American Mathematical Society, 2000
Every invariant linear manifold for a CSL-algebra, Alg ⁡ L \operatorname {Alg} \mathcal {L} , is a closed subspace if, and only if, each non-zero projection in L \mathcal {L} is generated by finitely many atoms associated with the projection lattice. When
openaire   +2 more sources

Spectral synthesis and masa-bimodules [PDF]

open access: yes, 2002
Generalizing a result of Arveson on finite width CSL algebras, we prove that finite width masa-bimodules satisfy spectral synthesis. Introducing a new class of masa-bimodules, we show that there exists a non-synthetic masa-bimodule, such that the maximal
Todorov, I. G.
core   +1 more source

Towards Light‐Weight Probabilistic Model Checking

open access: yesJournal of Applied Mathematics, Volume 2014, Issue 1, 2014., 2014
Model checking has been extensively used to verify various systems. However, this usually has been done by experts who have a good understanding of model checking and who are familiar with the syntax of both modelling and property specification languages.
Savas Konur, Guiming Luo
wiley   +1 more source

Spatiality of Derivations of Operator Algebras in Banach Spaces

open access: yesAbstract and Applied Analysis, Volume 2011, Issue 1, 2011., 2011
Suppose that 𝒜 is a transitive subalgebra of B(X) and its norm closure 𝒜¯ contains a nonzero minimal left ideal ℐ. It is shown that if δ is a bounded reflexive transitive derivation from 𝒜 into B(X), then δ is spatial and implemented uniquely; that is, there exists T ∈ B(X) such that δ(A) = TA − AT for each A ∈ 𝒜, and the implementation T of δ is ...
Quanyuan Chen   +2 more
wiley   +1 more source

Tensor products of subspace lattices and rank one density

open access: yes, 2012
We show that, if $M$ is a subspace lattice with the property that the rank one subspace of its operator algebra is weak* dense, $L$ is a commutative subspace lattice and $P$ is the lattice of all projections on a separable infinite dimensional Hilbert ...
A. Hopenwasser   +16 more
core   +1 more source

Reflexivity of the translation-dilation algebras on L^2(R)

open access: yes, 2003
The hyperbolic algebra A_h, studied recently by Katavolos and Power, is the weak star closed operator algebra on L^2(R) generated by H^\infty(R), as multiplication operators, and by the dilation operators V_t, t \geq 0, given by V_t f(x) = e^{t/2} f(e^t ...
Davidson K. R.   +4 more
core   +1 more source

Compact solutions to an operator equation in nest and CSL algebras

open access: yes, 2019
Given a nest algebra \(\text{Alg }N\) of operators in a Hilbert space \(H\), the authors characterize the pairs \(X\), \(Y\) of operators on \(H\) for which there exists a compact element \(A\) in \(\text{Alg }N\) which satisfies the equation \(AX= Y\). They solve the same interpolation problem for a system of equations \(Ax_ i= y_ i\) \((i= 1,\dots, n)
Power, S. C.   +2 more
openaire   +1 more source

Automatic closure of invariant linear manifolds for operator algebras [PDF]

open access: yes, 2000
Kadison's transitivity theorem implies that, for irreducible representations of C*-algebras, every invariant linear manifold is closed. It is known that CSL algebras have this propery if, and only if, the lattice is hyperatomic (every projection is ...
Donsig, Allan   +2 more
core   +2 more sources

Limit algebras and integer-valued cocycles, revisited

open access: yes, 2016
A triangular limit algebra A is isometrically isomorphic to the tensor algebra of a C*-correspondence if and only if its fundamental relation R(A) is a tree admitting a $Z^+_0$-valued continuous and coherent cocycle.
Katsoulis, Elias, Ramsey, Chris
core   +1 more source

1-Hyperreflexivity and Complete Hyperreflexivity

open access: yes, 2005
The subspaces and subalgebras of B(H) which are hyperreflexive with constant 1 are completely classified. It is shown that there are 1-hyperreflexive subspaces for which the complete hyperreflexivity constant is strictly greater than 1. The constants for
Arveson   +25 more
core   +3 more sources

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