Abstract
It is shown that convex hypersurfaces in Hilbert space forms have corresponding lower bounds on Alexandrov curvature. This extends earlier work of Buyalo, Alexander, Kapovitch, and Petrunin for convex hypersurfaces in Riemannian manifolds of finite dimension.
References
- S. Alexander, V. Kapovitch, A. Petrunin: An optimal lower curvature bound for convex hypersurfaces in Riemannian manifolds, Illinois J. Math. 52(3) (2008) 1031–1033.https://doi.org/10.1215/ijm/1254403729Google Scholar
- A. D. Alexandrov: Vnutrennyaya Geometriya Vypuklyh Poverhnosteĭ, OGIZ, Moscow-Leningrad (1948).Google Scholar
- D. Azagra, J. Ferrera: Inf-convolution and regularization of convex functions on Riemannian manifolds of nonpositive curvature, Rev. Mat. Complut. 19(2) (2006) 323–345.https://doi.org/10.5209/rev_REMA.2006.v19.n2.16592Google Scholar
- D. Burago, Y. Burago, S. Ivanov: A Course in Metric Geometry, Grad. Studies in Mathematics 33, American Math. Society, Providence (2001).https://doi.org/10.1090/gsm/033Google Scholar
- S. V. Buyalo: Shortest paths on convex hypersurfaces of a Riemannian space, Studies in topology II, Zap. Naučn. Sem. Leningrad. Otdel. Mat. Inst. Steklov (LOMI) 66 (1976) 114–132, 207.Google Scholar
- S. Halbeisen: On tangent cones of Alexandrov spaces with curvature bounded below, Manuscripta Math. 103(2) (2000) 169–182.https://doi.org/10.1007/s002290070018Google Scholar
- J.-M. Lasry, P.-L. Lions: A remark on regularization in Hilbert spaces, Israel J. Math. 55(3) (1986) 257–266.https://doi.org/10.1007/BF02765025Google Scholar
Suggested citation
Published by Heldermann Verlag, 2018. Rights now held by Banach Press.
