Results 21 to 30 of about 530,987 (125)

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

Tensor Constructions of Open String Theories I: Foundations

open access: yes, 1997
The possible tensor constructions of open string theories are analyzed from first principles. To this end the algebraic framework of open string field theory is clarified, including the role of the homotopy associative A_\infty algebra, the odd ...
Albert   +31 more
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

Conformal Current Algebra in Two Dimensions

open access: yes, 2009
We construct a non-chiral current algebra in two dimensions consistent with conformal invariance. We show that the conformal current algebra is realized in non-linear sigma-models on supergroup manifolds with vanishing dual Coxeter number, with or ...
A. Giveon   +12 more
core   +2 more sources

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

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

Theory of cyclic algebras over an algebraic number field [PDF]

open access: yesTransactions of the American Mathematical Society, 1932
I present this paper for publication to an American journal and in English for the following reason: The theory of linear algebras has been greatly extended through the work of American mathematicians. Of late, German mathematicians have become active in this theory.
openaire   +2 more sources

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