23 citations · 53 across the 3 of their papers we have counts for
5 papers
IIB solutions with N>28 Killing spinors are maximally supersymmetric
U. Gran, J. Gutowski, G. Papadopoulos +1
We show that all IIB supergravity backgrounds which admit more than 28 Killing spinors are maximally supersymmetric. In particular, we find that for all N>28 backgrounds the superc…
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…
IIB backgrounds with five-form flux
U. Gran, J. Gutowski, G. Papadopoulos
We investigate all N=2 supersymmetric IIB supergravity backgrounds with non-vanishing five-form flux. The Killing spinors have stability subgroups $Spin(7)\ltimes\bR^8$, $SU(4)\lti…
Aspects of spinorial geometry
U. Gran, J. Gutowski, G. Papadopoulos +1
We review some aspects of the spinorial geometry approach to the classification of supersymmetric solutions of supergravity theories. In particular, we explain how spinorial geomet…
Generalized Calibrations
Jan Gutowski
We present a generalization of calibrations in which the calibration form is not closed. We use this to examine a class of supersymmetric p-brane worldvolume solitons.As an example…