Results 31 to 40 of about 601 (63)

Derivations and Extensions in JC‐Algebras

International Journal of Mathematics and Mathematical Sciences, Volume 2025, Issue 1, 2025.
A well‐known result by Upmeier states that every derivation on a universally reversible JC‐algebra A⊆B(H)sa extends to the C∗‐algebra [A] generated by A in B(H). In this paper, we significantly strengthen this result by proving that every Jordan derivation on a universally reversible JC‐algebra A extends to ∗‐derivations on its universal enveloping ...
Fatmah B. Jamjoom, Doha A. Abulhamail, Armando Sánchez-Nungaray   +2 more
wiley   +1 more source

A metric space associated with probability space

, 1993
International Journal of Mathematics and Mathematical Sciences, Volume 16, Issue 2, Page 277-282, 1993.
Keith F. Taylor, Xikui Wang
wiley   +1 more source

Asymptotic freeness in tracial ultraproducts

Forum of Mathematics, Sigma
We prove novel asymptotic freeness results in tracial ultraproduct von Neumann algebras. In particular, we show that whenever $M = M_1 \ast M_2$ is a tracial free product von Neumann algebra and $u_1 \in \mathscr U(M_1)$ , $u_2 \in ...
Cyril Houdayer, Adrian Ioana
doaj   +1 more source

Nuclear JC‐algebras and tensor products of types

, 1992
International Journal of Mathematics and Mathematical Sciences, Volume 16, Issue 4, Page 717-723, 1993.
Fatmah B. Jamjoom
wiley   +1 more source

Quantum injectivity of G-frames in Hilbert spaces

Demonstratio Mathematica
Inspired by some recent work on the quantum detection problem by discrete frames and continuous frames, in this article, we examine the quantum detection problem with G-frames.
Hong Guoqing, Wan Linbin, Zhang Jianxia
doaj   +1 more source

On pairs of automorphisms of von Neumann algebras

, 1989
International Journal of Mathematics and Mathematical Sciences, Volume 12, Issue 2, Page 285-290, 1989.
A. B. Thaheem
wiley   +1 more source

The Takesaki equivalence relation for maximal abelian subalgebras

, 2011
For a maximal abelian subalgebra $A\subset M$ in a finite von Neumann algebra, we consider an invariant due to Takesaki which is an equivalence relation on a standard probability space.
Brothier, Arnaud
core  

The Pukánszky invariant for masas in group von Neumann factors

, 2005
A. Sinclair, Roger R. Smith
semanticscholar   +1 more source

Theitô Formula for Quantum Semimartingales

, 1997
G. Vincent-smith
semanticscholar   +1 more source

Duality theory for covariant systems

, 1979
M. B. Landstad
semanticscholar   +1 more source