Results 31 to 40 of about 78,049 (169)

Formality properties of finitely generated groups and Lie algebras

open access: yes, 2019
We explore the graded and filtered formality properties of finitely generated groups by studying the various Lie algebras over a field of characteristic 0 attached to such groups, including the Malcev Lie algebra, the associated graded Lie algebra, the ...
Suciu, Alexander I., Wang, He
core   +1 more source

Relative commutants of strongly self-absorbing C*-algebras [PDF]

open access: yes, 2016
The relative commutant $A'\cap A^{\mathcal{U}}$ of a strongly self-absorbing algebra $A$ is indistinguishable from its ultrapower $A^{\mathcal{U}}$. This applies both to the case when $A$ is the hyperfinite II$_1$ factor and to the case when it is a ...
A Connes   +29 more
core   +3 more sources

Coarse graining as a representation change

open access: yesPhysics Letters B, 2019
We discuss how SU(1,1) coherent states from the discrete series allow for a natural coarse graining operation. The physical application is quantum theories based on a set of three extensive observables whose Poisson algebra is isomorphic to su(1,1).
Norbert Bodendorfer, Fabian Haneder
doaj   +1 more source

Algebraic orthogonality and commuting projections in operator algebras

open access: yes, 2017
We describe absolutely ordered $p$-normed spaces, for $1 \le p \le \infty$ which presents a model for "non-commutative" vector lattices and includes order theoretic orthogonality.
Karn, Anil Kumar
core   +1 more source

On the Gauged Non-compact Spin System [PDF]

open access: yes, 1998
We examine classical and quantum aspects of the planar non-compact spin system coupled with Chern-Simons gauge field in the presence of background charge.
Belavin A. A.   +4 more
core   +2 more sources

Open-string vertex algebras, tensor categories and operads

open access: yes, 2003
We introduce notions of open-string vertex algebra, conformal open-string vertex algebra and variants of these notions. These are ``open-string-theoretic,'' ``noncommutative'' generalizations of the notions of vertex algebra and of conformal vertex ...
Borcherds   +12 more
core   +1 more source

Existence of optimal ultrafilters and the fundamental complexity of simple theories [PDF]

open access: yes, 2015
In the first edition of Classification Theory, the second author characterized the stable theories in terms of saturation of ultrapowers. Prior to this theorem, stability had already been defined in terms of counting types, and the unstable formula ...
Malliaris, M., Shelah, S.
core   +2 more sources

Some properties of Morly rank over Jonsson sets

open access: yesҚарағанды университетінің хабаршысы. Математика сериясы, 2016
This article introduced and discussed the concepts of minimal Jonsson sets and respectively strongly minimal Jonsson sets. On this basis, it introduces the concept of the independence of special subsets of existentially closed submodel of the semantic ...
A.R. Yeshkeyev
doaj   +1 more source

Algebraic and model-theoretic properties of tilings

open access: yesTheoretical Computer Science, 2004
zbMATH Open Web Interface contents unavailable due to conflicting licenses.
openaire   +2 more sources

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