26 citations · 43 across the 3 of their papers we have counts for
3 papers
hep-th2009★ 5 cited
Half-BPS quotients in M-theory: ADE with a twist
Paul de Medeiros, José Figueroa-O'Farrill, Sunil Gadhia +1
We classify Freund-Rubin backgrounds of eleven-dimensional supergravity of the form AdS_4 x X^7 which are at least half BPS; equivalently, smooth quotients of the round 7-sphere by…
hep-th2007★ 26 cited
M-theory preons cannot arise by quotients
José Figueroa-O'Farrill, Sunil Gadhia
M-theory preons -- solutions of eleven-dimensional supergravity preserving 31 supersymmetries -- have recently been shown to be locally maximally supersymmetric. This implies that…
hep-th2005★ 12 cited
Supersymmetry and spin structures
José Figueroa-O'Farrill, Sunil Gadhia
We construct examples of isometric M-theory backgrounds which preserve a different amount of supersymmetry depending on the choice of spin structure. These examples are of the form…