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Einstein manifolds with convex boundaries

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Commentarii Mathematici Helvetici

Abstract.

Let \( ({\rm M, \partial M}) \) be a compact m+1-manifold with boundary with an Einstein metric g 0, with ric g0 = —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 ric g = —mg on 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 ric g0 = —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 ric g0 = —mg sur M. Un résultat similaire (un peu plus faible) s'applique aux variétés Ricci-plates.

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Received: February 12, 1998

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Schlenker, JM. Einstein manifolds with convex boundaries. Comment. Math. Helv. 76, 1–28 (2001). https://doi.org/10.1007/s000140050148

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  • DOI: https://doi.org/10.1007/s000140050148

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