Georgios Papadopoulos

TL;DR: In this paper, the authors present a version of ten-dimensional IIA supergravity containing a 9-form potential for which the field equations are equivalent to those of the standard, massless, IIA theory for vanishing 10-form field strength, F-10, and to the'massive' IIB theory for non-vanishing F -10, which is made possible by the construction of a new massive N = 2 D = 9 supergravity theory.

TL;DR: In this article, it was shown that the structure constants 4-form of a metric 3-Lie algebra is the sum of the volume forms of orthogonal 4-planes proving a conjecture in math/0211170.

TL;DR: In this article, the authors investigated the compactification of D = 11 supergravity to D = 5,4,3, on compact manifolds of holonomy SU (3) (Calabi-Yau), G 2, and Spin (7), respectively, making use of examples of the latter two cases found recently by Joyce.

TL;DR: In this article, it was shown that the moduli space of a class of black holes in five and nine dimensions is hyper-Kahler with torsion, and octonionic-kahler-with-torsion respectively, and that both of these geometries arise naturally in this context.

TL;DR: In this paper, a new class of (p, q )-extended Poincare supergravity theories in 2+1 dimensions was constructed as Chern-Simons theories of supersymmetry algebras with both central and automorphism charges.