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Lorentzian Warped Products and Singularity
Authors:M Ulanovskii
Institution:(1) INRIA Rh?ne-Alpes, avenue de l’Europe 655, 38334 Saint-Ismier, France
Abstract:We show that to any convex function f:Ropf n rarr Ropf there correspondinfinitely many geodesically complete metricsds2 such that Ric(xgr) xgr 0 for anynonspacelike vector xgr. These metrics are constructedas the warped products of the natural metric inRopf and the inner metric of a convexhyperface (the graph of f) in Ropf n + 1.
Keywords:LORENTZIAN MANIFOLD  RICCI FORM
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