Three-dimensional manifolds of nonnegative ricci curvature, with boundary

N. G. Ananov, Yury D. Burago, V. A. Zalgaller

Research output: Contribution to journalArticle

Abstract

A complete proof is given of the theorem, announced earlier, that a three-dimensional Riemannian manifold with nonnegative Ricci curvature and nonempty connected boundary of nonnegative mean curvature (or, more generally, with H ≥ 0 and Ric ≥ -min H2) is a handlebody (oriented or nonoriented). The proof uses the fact that subanalytic sets have finite triangulations and a generalized limit angle lemma; these enable one to control the reconstruction of the equidistants of the boundary. Figures: 3. Bibliography: 27 titles.

Original languageEnglish (US)
Pages (from-to)163-186
Number of pages24
JournalMathematics of the USSR - Sbornik
Volume56
Issue number1
DOIs
StatePublished - Feb 28 1987

Fingerprint

Nonnegative Curvature
Ricci Curvature
Handlebody
Three-dimensional
Equidistant
Mean Curvature
Triangulation
Riemannian Manifold
Finite Set
Lemma
Figure
Angle
Theorem
Bibliography

All Science Journal Classification (ASJC) codes

  • Mathematics(all)

Cite this

Ananov, N. G. ; Burago, Yury D. ; Zalgaller, V. A. / Three-dimensional manifolds of nonnegative ricci curvature, with boundary. In: Mathematics of the USSR - Sbornik. 1987 ; Vol. 56, No. 1. pp. 163-186.
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Three-dimensional manifolds of nonnegative ricci curvature, with boundary. / Ananov, N. G.; Burago, Yury D.; Zalgaller, V. A.

In: Mathematics of the USSR - Sbornik, Vol. 56, No. 1, 28.02.1987, p. 163-186.

Research output: Contribution to journalArticle

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