2018
DOI: 10.1007/s00013-017-1144-y
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Einstein submanifolds with parallel mean curvature

Abstract: We provide a classification of Einstein submanifolds in space forms with flat normal bundle and parallel mean curvature. This extends a previous result due to Dajczer and Tojeiro [3] for isometric immersions of Riemannian manifolds with constant sectional curvature.

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Cited by 8 publications
(7 citation statements)
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“…(see more progresses in [22]). These Einstein hypersurfaces only consist of isoparametric hypersurfaces with no more than 2 principal curvatures (except S 1 (r) × S n−1 ( √ 1 − r 2 ), 0 < r < 1) in S n+1 .…”
Section: Introductionmentioning
confidence: 99%
“…(see more progresses in [22]). These Einstein hypersurfaces only consist of isoparametric hypersurfaces with no more than 2 principal curvatures (except S 1 (r) × S n−1 ( √ 1 − r 2 ), 0 < r < 1) in S n+1 .…”
Section: Introductionmentioning
confidence: 99%
“…In Chapter 5, we provide a complete classification of Einstein submanifolds in space forms with flat normal bundle and parallel mean curvature vector field. This result is contained in [48] and extends a previous result due to Dajczer and Tojeiro [21] for isometric immersions of Riemannian manifolds with constant sectional curvature.…”
Section: Introductionsupporting
confidence: 86%
“…(II) A similar classification also holds if we replace the conformal flatness hypothesis with the Einstein one, i.e., Riemannian manifolds with constant Ricci curvature. In particular, something weaker holds and that is that in this case the submanifold does not have to be a priori isoparametric but only to have flat normal bundle and parallel mean curvature vector field (see [16]). The reason we do comment on this case is due to the fact that these two larger classes, namely the Einstein and the conformally flat ones, are (natural) extensions of the class of Riemannian manifolds with constant sectional curvature, which is a subject that has been investigated extensively (from the submanifold point of view) by many authors throughout the years; for a survey see [2].…”
Section: Introductionmentioning
confidence: 99%