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Showing 1995Show all
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gr-qc1995★ 45 cited
Exact Hypersurface-Homogeneous Solutions in Cosmology and Astrophysics
Claes Uggla, Robert T. Jantzen, Kjell Rosquist
A framework is introduced which explains the existence and similarities of most exact solutions of the Einstein equations with a wide range of sources for the class of hypersurface…
math.CO1995
A new series of dense graphs of high girth
Felix Lazebnik, Vasiliy A. Ustimenko, Andrew J. Woldar
Let be an odd integer, , and be a prime power. We construct a bipartite, -regular, edge-transitive graph of order $v \l…