ar X iv : 0 80 9 . 07 07 v 1 [ m at h . D G ] 3 S ep 2 00 8 CCNV Spacetimes and ( Super ) symmetries
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چکیده
It is of interest to study supergravity solutions preserving a nonminimal fraction of supersymmetries. A necessary condition for supersymmetry to be preserved is that the spacetime admits a Killing spinor and hence a null or timelike Killing vector. Spacetimes admitting a covariantly constant null vector (CCNV ), and hence a null Killing vector, belong to the Kundt class. We investigate the existence of additional isometries in the class of higher-dimensional CCNV Kundt metrics.
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تاریخ انتشار 2008