Results 21 to 30 of about 372,784 (167)

Nonclassifiability of UHF $L^p$-operator algebras

open access: yes, 2015
We prove that simple, separable, monotracial UHF $L^{p}$-operator algebras are not classifiable up to (complete) isomorphism using countable structures, such as K-theoretic data, as invariants.
Gardella, Eusebio, Lupini, Martino
core   +1 more source

Vertex Lie algebras, vertex Poisson algebras and vertex algebras [PDF]

open access: yesarXiv, 2001
The notions of vertex Lie algebra and vertex Poisson algebra are presented and connections among vertex Lie algebras, vertex Poisson algebras and vertex algebras are discussed.
arxiv  

Log-majorization type inequalities [PDF]

open access: yes
Several inequalities have been established in the context of Hilbert spaces operators or operator algebras. Our discussion will be limited to matrices.
Bebiano, N., Lemos, R., Soares, G.
core   +1 more source

Identities and derivations for Jacobian algebras [PDF]

open access: yesarXiv, 2002
Constructions of n-Lie algebras by strong n-Lie-Poisson algebras are given. First cohomology groups of adjoint module of Jacobian algebras are calculated. Minimal identities of 3-Jacobian algebra are found.
arxiv  

Some open problems in mathematical two-dimensional conformal field theory

open access: yes, 2017
We discuss some open problems in a program of constructing and studying two-dimensional conformal field theories using the representation theory of vertex operator algebras.Comment: 16 pages. Typos are corrected and some sentences are adjusted.
Huang, Yi-Zhi
core   +1 more source

Chiral algebras, factorization algebras, and Borcherds's "singular commutative rings" approach to vertex algebras [PDF]

open access: yesarXiv, 2019
We recall Borcherds's approach to vertex algebras via "singular commutative rings", and introduce new examples of his constructions which we compare to vertex algebras, chiral algebras, and factorization algebras. We show that all vertex algebras (resp.
arxiv  

Logic and operator algebras [PDF]

open access: yes, 2014
The most recent wave of applications of logic to operator algebras is a young and rapidly developing field.
Farah, Ilijas
core   +1 more source

Commuting Toeplitz Operators on Bounded Symmetric Domains and Multiplicity-Free Restrictions of Holomorphic Discrete Series

open access: yes, 2014
For any given bounded symmetric domain, we prove the existence of commutative $C^*$-algebras generated by Toeplitz operators acting on any weighted Bergman space.
Dawson, Matthew   +2 more
core   +1 more source

Zero divisors in reduction algebras [PDF]

open access: yesarXiv, 2011
We establish the absence of zero divisors in the reduction algebra of a Lie algebra g with respect to its reductive Lie sub-algebra k. The class of reduction algebras include the Lie algebras (they arise when k is trivial) and the Gelfand--Kirillov conjecture extends naturally to the reduction algebras.
arxiv  

Metric Entropy of Homogeneous Spaces

open access: yes, 1997
For a (compact) subset $K$ of a metric space and $\varepsilon > 0$, the {\em covering number} $N(K , \varepsilon )$ is defined as the smallest number of balls of radius $\varepsilon$ whose union covers $K$.
Szarek, Stanislaw J.
core   +3 more sources

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