Isometry groups of Lorentz manifolds.
Isometry groups of singular spaces.
Isometry invariant Finsler metrics on Hilbert spaces
In this paper we study isometry-invariant Finsler metrics on inner product spaces over or , i.e. the Finsler metrics which do not change under the action of all isometries of the inner product space. We give a new proof of the analytic description of all such metrics. In this article the most general concept of the Finsler metric is considered without any additional assumptions that are usually built into its definition. However, we present refined versions of the described results for more specific...
Isoparametric and Dupin hypersurfaces.
Isoparametric families on projective spaces.
Isoparametric Functions on Riemannian Manifolds. I.
Isoparametric Hypersurfaces in the Pseudo-Riemannian Space Forms.
Isoparametric Hypersurfaces with Four or Six Distinct Principal Curvatures. Necessary Conditions on the Multiplicities.
Isoparametric hypersurfaces with less than four principal curvatures in a sphere
We characterize Clifford hypersurfaces and Cartan minimal hypersurfaces in a sphere by some properties of extrinsic shapes of their geodesics.
Isoparametric triple systems of FKM-Type II.
Isoparametrische Hyperflächen in Sphären I.
Isoparametrische Hyperflächen in Sphären. II. Über die Zerlegung der Sphäre in Ballbündel.
Isoperimetric constants and the first eigenvalue of a compact riemannian manifold
Isoperimetric Constants of Manifolds with Small Handles.
Isoperimetric inequalities for parametric variational problems
Isoperimetric inequalities on minimal submanifolds of space forms.
Isoperimetric problems on the sphere and on surfaces with density.
Isoperimetric profile and uniqueness for Neumann problems
Isopérimétrie pour les groupes et les variétés.
Dans cet article, nous proposons une approche très directe de différents inégalités isopérimétriques.
Isoptics of a closed strictly convex curve. - II