5 papers
Magics of M-gravity
B. L. Julia
Compactifications on tori may seem to have revealed their beauty long ago but the mystery of 11d Supergravity remains and fresh attempts at a conceptual breakthrough are worth the…
Currents and Superpotentials in classical gauge theories: II. Global aspects and the example of Affine gravity
B. Julia, S. Silva
The conserved charges associated to gauge symmetries are defined at a boundary component of space-time because the corresponding Noether current can be rewritten on-shell as the di…
On first order formulations of supergravities
B. Julia, S. Silva
Supergravities are usually presented in a so-called 1.5 order formulation. Here we present a general scheme to derive pure 1^{st} order formulations of supergravities from the 1.5…
Twisted Self-Duality of Dimensionally Reduced Gravity and Vertex Operators
D. Bernard, B. Julia
The Geroch group, isomorphic to the SL(2,R) affine Kac-Moody group, is an infinite dimensional solution generating group of Einstein's equations with two surface orthogonal commuti…
Conformal internal symmetry of -models coupled to gravity and a dilaton
B. Julia, H. Nicolai
General Relativity reduced to two dimensions possesses a large group of symmetries that exchange classical solutions. The associated Lie algebra is known to contain the affine Kac-…