Results 31 to 40 of about 557,632 (168)

Golod-Shafarevich groups: a survey

open access: yes, 2012
In this paper we survey the main results about Golod-Shafarevich groups and their applications in algebra, number theory and topology.Comment: 54 ...
Ershov, Mikhail
core   +1 more source

Kac-Moody Symmetries of Ten-dimensional Non-maximal Supergravity Theories

open access: yes, 2004
A description of the bosonic sector of ten-dimensional N=1 supergravity as a non-linear realisation is given. We show that if a suitable extension of this theory were invariant under a Kac-Moody algebra, then this algebra would have to contain a rank ...
A. Barut   +22 more
core   +2 more sources

Two Dimensional String Theory and the Topological Torus

open access: yes, 1992
We analyze topological string theory on a two dimensional torus, focusing on symmetries in the matter sector. Even before coupling to gravity, the topological torus has an infinite number of point-like physical observables, which give rise via the BRST ...
Alvarez-Gaumé   +63 more
core   +1 more source

Homotopy moment maps

open access: yes, 2016
Associated to any manifold equipped with a closed form of degree >1 is an `L-infinity algebra of observables' which acts as a higher/homotopy analog of the Poisson algebra of functions on a symplectic manifold.
Callies, Martin   +3 more
core   +1 more source

Singular Homology of Arithmetic Schemes

open access: yes, 2007
We construct a singular homology theory on the category of schemes of finite type over a Dedekind domain and verify several basic properties. For arithmetic schemes we construct a reciprocity isomorphism between the integral singular homology in degree ...
Schmidt, Alexander
core   +1 more source

On a conjecture of Kontsevich and Soibelman

open access: yes, 2012
We consider a conjecture of Kontsevich and Soibelman which is regarded as a foundation of their theory of motivic Donaldson-Thomas invariants for non-commutative 3d Calabi-Yau varieties.
Thuong, Le Quy
core   +1 more source

Unitary Irreducible Representations of a Lie Algebra for Matrix Chain Models

open access: yes, 2001
There is a decomposition of a Lie algebra for open matrix chains akin to the triangular decomposition. We use this decomposition to construct unitary irreducible representations. All multiple meson states can be retrieved this way. Moreover, they are the
Jakobsen, H. P., Lee, C. -W. H.
core   +1 more source

Twisted vertex algebras, bicharacter construction and boson-fermion correspondences

open access: yes, 2013
The boson-fermion correspondences are an important phenomena on the intersection of several areas in mathematical physics: representation theory, vertex algebras and conformal field theory, integrable systems, number theory, cohomology.
Anguelova, Iana I.
core   +1 more source

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