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Commentarii Mathematici Helvetici
Article . 2001 . Peer-reviewed
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Einstein manifolds with convex boundaries

Authors: Jean-Marc Schlenker;

Einstein manifolds with convex boundaries

Abstract

Let ({\rm M, \partial M}) be a compact m+1 -manifold with boundary with an Einstein metric g_0 , with \mathrm{ric}_{g_0} = -mg_0 and with pinched negative curvature, such that \partial {\rm M} is convex and umbilical. Let h_0 be the induced metric on \partial {\rm M} . Then any metric close enough to h_0 is induced on \partial {\rm M} by an Einstein metric g with \mathrm{ric}_g = -mg on \rm M . A similar (but slightly weaker) result applies to Ricci-flat manifolds. Résumé. Soit ({\rm M, \partial M}) und m+1 -variété compacte à bord, munie d'une métrique d'Einstein g_0 , avec \mathrm{ric}_{g_0} = -mg_0 et à courbure négative pincée, telle que \partial {\rm M} est convexe et ombilique. Soit h_0 la métrique induite sur \partial {\rm M} . Alors toute métrique susamment proche de h_0 est induite sur \partial {\rm M} par une métrique d'Einstein g avec \mathrm{ric}_g= -mg sur \rm M . Un résultat similaire (un peu plus faible) s'applique aux variétés Ricci-plates.

Keywords

Weitzenböck formula, tame Fréchet manifold, Special Riemannian manifolds (Einstein, Sasakian, etc.), Ricci-flat metric, isometric imbedding, Global surface theory (convex surfaces à la A. D. Aleksandrov), umbilical boundary

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citations
This is an alternative to the "Influence" indicator, which also reflects the overall/total impact of an article in the research community at large, based on the underlying citation network (diachronically).
BIP!Citations provided by BIP!
popularity
This indicator reflects the "current" impact/attention (the "hype") of an article in the research community at large, based on the underlying citation network.
BIP!Popularity provided by BIP!
influence
This indicator reflects the overall/total impact of an article in the research community at large, based on the underlying citation network (diachronically).
BIP!Influence provided by BIP!
impulse
This indicator reflects the initial momentum of an article directly after its publication, based on the underlying citation network.
BIP!Impulse provided by BIP!
16
Average
Top 10%
Top 10%
gold