85 citations · 194 across the 7 of their papers we have counts for
7 papers
Hyperbolic Kac Moody Algebras and Einstein Billiards
S. de Buyl, C. Schomblond
We identify the hyperbolic Kac Moody algebras for which there exists a Lagrangian of gravity, dilatons and -forms which produces a billiard that can be identified with their fun…
Einstein billiards and spatially homogeneous cosmological models
Sophie de Buyl, Gaia Pinardi, Christiane Schomblond
In this paper, we analyse the Einstein and Einstein-Maxwell billiards for all spatially homogeneous cosmological models corresponding to 3 and 4 dimensional real unimodular Lie alg…
Einstein billiards and overextensions of finite-dimensional simple Lie algebras
Thibault Damour, Sophie de Buyl, Marc Henneaux +1
In recent papers, it has been shown that (i) the dynamics of theories involving gravity can be described, in the vicinity of a spacelike singularity, as a billiard motion in a regi…
Results on the Wess-Zumino consistency condition for arbitrary Lie algebras
A. Barkallil, G. Barnich, C. Schomblond
The so-called covariant Poincare lemma on the induced cohomology of the spacetime exterior derivative in the cohomology of the gauge part of the BRST differential is extended to co…
Couplings of gravity to antisymmetric gauge fields
Xavier Bekaert, Bernard Knaepen, Christiane Schomblond
We classify all the first-order vertices of gravity consistently coupled to a system of 2-form gauge fields by computing the local BRST cohomology H(s|d) in ghost number 0 and form…
BRST cohomology of the Chapline-Manton model
Marc Henneaux, Bernard Knaepen, Christiane Schomblond
We completely compute the local BRST cohomology of the combined Yang-Mills-2-form system coupled through the Yang-Mills Chern-Simons term ("Chapline-Manton model"). We con…