Results 11 to 20 of about 34,464 (177)

Spectra of Abelian C∗-Subalgebra Sums [PDF]

open access: yesVietnam Journal of Mathematics, 2019
12 pages, LaTeX. Extension of Section 3 in arXiv:1010.0449 (version v1)
Fleischhack, Christian
openaire   +4 more sources

On conjugacy of maximal abelian subalgebras and the outer automorphism group of the Cuntz algebra [PDF]

open access: yes, 2015
We investigate the structure of the outer automorphism group of the Cuntz algebra and the closely related problem of conjugacy of maximal abelian subalgebras in On.
CONTI, ROBERTO   +2 more
core   +1 more source

Abelian, amenable operator algebras are similar to C*-algebras [PDF]

open access: yes, 2013
Suppose that H is a complex Hilbert space and that B(H) denotes the bounded linear operators on H. We show that every abelian, amenable operator algebra is similar to a C*-algebra. We do this by showing that if A is an abelian subalgebra of B(H) with the
Alexey, I. Popov, Laurent W. Marcoux
core   +1 more source

Logarithmic supertranslations and supertranslation-invariant Lorentz charges

open access: yesJournal of High Energy Physics, 2023
We extend the BMS(4) group by adding logarithmic supertranslations. This is done by relaxing the boundary conditions on the metric and its conjugate momentum at spatial infinity in order to allow logarithmic terms of carefully designed form in the ...
Oscar Fuentealba   +2 more
doaj   +1 more source

Maximal abelian subalgebras with simple normalizer [PDF]

open access: yesProceedings of the American Mathematical Society, 1989
All infinite factors with separable predual contain a maximal Abelian * subalgebra whose normalizer generates a simple ...
openaire   +2 more sources

Non-Abelian fracton order from gauging a mixture of subsystem and global symmetries

open access: yesPhysical Review Research, 2021
We construct a general gauging procedure of a pure matter theory on a lattice with a mixture of subsystem and global symmetries. This mixed symmetry can be either a semidirect product of a subsystem symmetry and a global symmetry, or a nontrivial ...
Yi-Ting Tu, Po-Yao Chang
doaj   +1 more source

Further results on elementary Lie algebras and Lie A-algebras. [PDF]

open access: yes, 1994
A finite-dimensional Lie algebra L over a field F of characteristic zero is called elementary if each of its subalgebras has trivial Frattini ideal; it is an A-algebra if every nilpotent subalgebra is abelian. This paper is a continuation of the study of
Towers, David A., Varea, Vicente R.
core   +8 more sources

On the protected spectrum of the minimal Argyres-Douglas theory

open access: yesJournal of High Energy Physics, 2022
Despite the power of supersymmetry, finding exact closed-form expressions for the protected operator spectra of interacting superconformal field theories (SCFTs) is difficult.
Chinmaya Bhargava   +2 more
doaj   +1 more source

On Derivations Annihilating a Maximal Abelian Subalgebra [PDF]

open access: yesTransactions of the American Mathematical Society, 1985
Let A \mathcal {A} be an AF C ∗ {\text {AF}}\;{C^\ast } -algebra, and let δ \delta be a closed ∗ \ast -derivation which annihilates the maximal abelian subalgebra C
openaire   +2 more sources

On non-abelian T-duality and deformations of supercoset string sigma-models

open access: yesJournal of High Energy Physics, 2017
We elaborate on the class of deformed T-dual (DTD) models obtained by first adding a topological term to the action of a supercoset sigma model and then performing (non-abelian) T-duality on a subalgebra g ˜ $$ \tilde{\mathfrak{g}} $$ of the ...
Riccardo Borsato, Linus Wulff
doaj   +1 more source

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