571 citations · 3.9k across the 120 of their papers we have counts for
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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…
Gauging the Wess-Zumino term of a sigma model with boundary
José Figueroa-O'Farrill, Noureddine Mohammedi
We investigate the gauging of the Wess-Zumino term of a sigma model with boundary. We derive a set of obstructions to gauging and we interpret them as the conditions for the Wess-Z…
Homogeneity and plane-wave limits
José Figueroa-O'Farrill, Patrick Meessen, Simon Philip
We explore the plane-wave limit of homogeneous spacetimes. For plane-wave limits along homogeneous geodesics the limit is known to be homogeneous and we exhibit the limiting metric…