Eine innere Kennzeichnung der verzerrten Produkte.
Einige Kennzeichnungen der homothetischen Abbildungen eines Riemannschjen Raumes unter den kreistreuen Abbildungen.
Einstein manifolds, volume rigidity and Seiberg-Witten theory
Einstein-Weyl geometry, the Bach tensor and conformal scalar curvature.
Ellipsoids and hyperboloids with infinite foci
Embedding and surrounding with positive mean curvature.
Embedding of open riemannian manifolds by harmonic functions
Let be a noncompact Riemannian manifold of dimension . Then there exists a proper embedding of into by harmonic functions on . It is easy to find harmonic functions which give an embedding. However, it is more difficult to achieve properness. The proof depends on the theorems of Lax-Malgrange and Aronszajn-Cordes in the theory of elliptic equations.
Embedding Riemannian Manifolds by Their Heat Kernel.
Équations différentielles caractéristiques de la sphère
Equivalence of geometric and combinatorial Dehn functions.
Errata to the Paper: On the Heat Equation and the Index Theorem.
Erratum : Sur les variétés riemanniennes pincées juste au-dessous de 1/4
Erratum to the paper "A finiteness theorem for Riemannian submersions" (Ann. Polon. Math. 57 (1992), 283-290)
Estimation des fonctions de Littlewood-Paley-Stein sur les variétés riemanniennes à courbure non positive
Estimation of vibration frequencies of linear elastic membranes
The free motion of a thin elastic linear membrane is described, in a simplyfied model, by a second order linear homogeneous hyperbolic system of partial differential equations whose spatial part is the Laplace Beltrami operator acting on a Riemannian 2-dimensional manifold with boundary. We adapt the estimates of the spectrum of the Laplacian obtained in the last years by several authors for compact closed Riemannian manifolds. To make so, we use the standard technique of the doubled manifold to...
Examples of Riemannian manifolds with positive curvature almost everywhere.
Existence and non-existence results for harmonic maps between spheres
Existence des applications harmoniques et courbure des variétés
Existence et compacité d'immersions isométriques elliptiques
Existence of flat tori in analytic manifolds of nonpositive curvature