21 citations · 21 across the 1 of their papers we have counts for
8 papers
More Ricci-flat branes
JM Figueroa-O'Farrill
Certain supergravity solutions (including domain walls and the magnetic fivebrane) have recently been generalised by Brecher and Perry by relaxing the condition that the brane worl…
On the supersymmetries of anti de Sitter vacua
JM Figueroa-O'Farrill
We present details of a geometric method to associate a Lie superalgebra with a large class of bosonic supergravity vacua of the type AdS x X, corresponding to elementary branes in…
Intersecting brane geometries
JM Figueroa-O'Farrill
We present a survey of the calibrated geometries arising in the study of the local singularity structure of supersymmetric fivebranes in M-theory. We pay particular attention to th…
Supersymmetry and the cohomology of (hyper)Kaehler manifolds
JM Figueroa-O'Farrill, C Koehl, B Spence
The cohomology of a compact Kaehler (resp. hyperKaehler) manifold admits the action of the Lie algebra so(2,1) (resp. so(4,1)). In this paper we show, following an idea of Witten,…
Untwisting Topological Field Theories
J. M. Figueroa-O'Farrill
A method is presented by which a hidden N=2 superconformal symmetry can be exhibited in a string theory or indeed in a topological conformal field theory. More precisely, we presen…
Are all TCFTs obtained by twisting N=2 SCFTs?
JM Figueroa-O'Farrill
A large class of two-dimensional topological conformal field theories (TCFTs) are obtained by the twisting construction of Witten and Eguchi-Yang. However there seem to exist TCFTs…