Results 101 to 110 of about 4,647,140 (179)

Linear combinations of projections in von Neumann algebras

open access: yes, 1992
Any operator in a von Neumann algebra is a linear combination of a finite number of projections from the algebra with coefficients from the center of the algebra.
Stanisław Goldstein, Adam Paszkiewicz
core   +1 more source

On masas in q-deformed von neumann algebras [PDF]

open access: yes, 2019
We study certain q-deformed analogues of the maximal abelian subalgebras of the group von Neumann algebras of free groups. The radial subalgebra is defined for Hecke deformed von Neumann algebras of the Coxeter group (Z=2Z)k and shown to be a maximal ...
Caspers, Martijn   +3 more
core  

Embeddings of von Neumann algebras into uniform Roe algebras and quasi-local algebras

open access: yes, 2023
We study which von Neumann algebras can be embedded into uniform Roe algebras and quasi-local algebras associated to a uniformly locally finite metric space $X$.
Farah, Ilijas   +4 more
core  

A Characterization of Nonadditive Skew Commuting Maps on ∗-Algebras

open access: yesJournal of Mathematics
Let A be a unital ∗-algebra with the unit I and ZSA be the symmetric center of A. Assume that A contains a nontrivial projection P such that AAP=0 implies A=0 and AAI−P=0 implies A=0.
Liang Kong, Chao Li
doaj   +1 more source

Nonlinear Mixed Jordan-Type Derivations on ∗-Algebra

open access: yesAxioms
Let A be a unital ∗-algebra over the complex fields C. In this article, it is proved that a nonlinear mixed bi-skew Jordan n-derivation is an additive ∗-derivation under certain conditions.
Amal S. Alali   +2 more
doaj   +1 more source

The existence of singularities and the origin of space-time

open access: yesZagadnienia Filozoficzne w Nauce, 2008
Methods of noncommutative geometry are applied to deal with singular space-times in general relativity. Such space-times are modeled by noncommutative von Neumann algebras of random operators.
Michał Heller
doaj  

Derivations of Murray-von Neumann Algebras

open access: yes, 2014
A Murray-von Neumann algebra is the algebra of operators affiliated with a finite von Neumann algebra. In this article, we study derivations of Murray-von Neumann algebras and their properties.
Liu, Zhe, Kadison, Richard V.
core   +1 more source

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