177 citations · 1.8k across the 45 of their papers we have counts for
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hep-th2010★ 8 cited
Covariantly constant forms on torsionful geometries from world-sheet and spacetime perspectives
P. S. Howe, George Papadopoulos, Vid Stojevic
The symmetries of two-dimensional supersymmetric sigma models on target spaces with covariantly constant forms associated to special holonomy groups are analysed. It is shown that…
hep-th2010★ 26 cited
Heterotic horizons, Monge-Ampere equation and del Pezzo surfaces
J. Gutowski, G. Papadopoulos
Heterotic horizons preserving 4 supersymmetries have sections which are T^2 fibrations over 6-dimensional conformally balanced Hermitian manifolds. We give new examples of horizons…
hep-th2010★ 20 cited
M-theory backgrounds with 30 Killing spinors are maximally supersymmetric
U. Gran, J. Gutowski, G. Papadopoulos
We show that all M-theory backgrounds which admit more than 29 Killing spinors are maximally supersymmetric. In particular, we find that the supercovariant curvature of all backgro…