36 citations · 60 across the 2 of their papers we have counts for
2 papers
hep-th2005★ 24 cited
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…
math.DG2004★ 36 cited
Penrose limits of homogeneous spaces
Simon Philip
We prove that the Penrose limit of a spacetime along a homogeneous geodesic is a homogeneous plane wave spacetime and that the Penrose limit of a reductive homogeneous spacetime al…