29 citations · 82 across the 6 of their papers we have counts for
10 papers
Metric Lie n-algebras and double extensions
José Figueroa-O'Farrill
We prove a structure theorem for Lie n-algebras possessing an invariant inner product. We define the notion of a double extension of a metric Lie n-algebra by another Lie n-algebra…
Killing superalgebra deformations of ten-dimensional supergravity backgrounds
José Figueroa-O'Farrill, Bert Vercnocke
We explore Lie superalgebra deformations of the Killing superalgebras of some ten-dimensional supergravity backgrounds. We prove the rigidity of the Poincare superalgebras in types…
Deformations of M-theory Killing superalgebras
José Figueroa-O'Farrill
We classify the Lie superalgebra deformations of the Killing superalgebras of some M-theory backgrounds. We show that the Killing superalgebras of the Minkowski, Freund--Rubin and…
The return of the four- and five-dimensional preons
José Figueroa-O'Farrill, Jan Gutowski, Wafic Sabra
We prove the existence of 3/4-BPS preons in four- and five-dimensional gauged supergravities by explicitly constructing them as smooth quotients of the AdS_4 and AdS_5 maximally su…
Lorentzian symmetric spaces in supergravity
José Figueroa-O'Farrill
I will discuss the emergence of lorentzian symmetric spaces as supersymmetric supergravity backgrounds. I will focus on supergravity theories in dimension 11, 10, and 6, and will c…
Supergravity vacua and lorentzian Lie groups
Ali Chamseddine, José Figueroa-O'Farrill, Wafic Sabra
We classify maximally supersymmetric backgrounds (vacua) of chiral (1,0) and (2,0) supergravities in six dimensions and, by reduction, also those of the minimal N=2 supergravity in…