Results 11 to 20 of about 171,144,615 (112)

Conditions implying the uniqueness of the weak*-topology on certain group algebras [PDF]

open access: yes, 2009
We investigate possible preduals of the measure algebra M(G) of a locally compact group and the Fourier algebra A(G) of a separable compact group. Both of these algebras are canonically dual spaces and the canonical preduals make the multiplication ...
Daws, M., White, S., lePham, H.
core   +8 more sources

A remark on the similarity and perturbation problems [PDF]

open access: yes, 2013
In this note we show that Kadison's similarity problem for C*-algebras is equivalent to a problem in perturbation theory: must close C*-algebras have close ...
Smith, R.R.   +5 more
core   +8 more sources

Type II1 factors satisfying the spatial isomorphism conjecture [PDF]

open access: yes, 2012
This paper addresses a conjecture in the work by Kadison and Kastler [Kadison RV, Kastler D (1972) Am J Math 94:38–54] that a von Neumann algebra M on a Hilbert space H should be unitarily equivalent to each sufficiently close von Neumann algebra N, and,
Smith, Roger R.   +17 more
core   +1 more source

Groupoid normalizers of tensor products [PDF]

open access: yes, 2010
We consider an inclusion B [subset of or equal to] M of finite von Neumann algebras satisfying B′∩M [subset of or equal to] B. A partial isometry vset membership, variantM is called a groupoid normalizer if vBv*,v*Bv[subset of or equal to] B.
White, S.A.   +3 more
core   +1 more source

Von-Neumann Finiteness and Reversibility in some Classes of Non-Associative Algebras

open access: yes, 2021
We investigate criteria for von-Neumann finiteness and reversibility in some classes of non-associative algebras. Types of algebras that are studied include alternative, flexible, quadratic and involutive algebras, as well as algebras obtained by the ...
Darpö, Erik,, Nystedt, Patrik,
core   +1 more source

Borel reducibility and classification of von Neumann algebras [PDF]

open access: yes, 2009
We announce some new results regarding the classification problem for separable von Neumann algebras. Our results are obtained by applying the notion of Borel reducibility and Hjorth's theory of turbulence to the isomorphism relation for separable von ...
Tornquist, Asger   +3 more
core   +1 more source

The von Neumann Model and the Early Models of General Equilibrium [PDF]

open access: yes, 2003
The paper reconstructs the von Neumann model, comments on its salient features and critically reviews some of its generalisations. The issues related to thetreatment of consumption, decomposability and uniqueness of the rate of growth and interest will ...
Zalai, Ernő, Ernő Zalai
core   +1 more source

Decomposable approximations of nuclear C*-algebras [PDF]

open access: yes, 2012
We show that nuclear <i>C</i><sup>*</sup>-algebras have a refined version of the completely positive approximation property, in which the maps that approximately factorize through finite dimensional algebras are convex ...
Kirchberg, Eberhard   +5 more
core   +1 more source

Perturbations of C*-algebraic invariants [PDF]

open access: yes, 2010
Kadison and Kastler introduced a metric on the set of all C*-algebras on a fixed Hilbert space. In this paper structural properties of C*-algebras which are close in this metric are examined.
White, Stuart   +11 more
core   +1 more source

Kochen-Specker theorem for von Neumann algebras [PDF]

open access: yes, 2005
The Kochen-Specker theorem has been discussed intensely ever since its original proof in 1967. It is one of the central no-go theorems of quantum theory, showing the non-existence of a certain kind of hidden states models. In this paper, we first offer a
Döring, Andreas
core  

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