-гладкие изометрические погружения
-гладкие поверхности ограниченной внешней положительной кривизны
-algebras, positive scalar curvature, and the Novikov conjecture
-hypersurfaces of the six-dimensional sphere.
-totally real submanifolds of satisfying a certain inequality.
C*-actions.
C*-actions on Grassmann bundles and the cycle at infinity.
Calcul du spectre de certaines nilvariétés compactes de dimension 3
Calcul du tenseur de Ricci d’une particulière plongée dans pour la métrique induite par la métrique canonique
Calculation of Rozansky-Witten invariants on the Hilbert schemes of points on a K3 surface and the generalised kummer varieties.
Calibrated geometries in Grassmann manifolds.
Calibrations and the size of Grassmann faces.
Campi di vettori e numeri caratteristici su varietà iperkahleriane e quaternionali kàhleriane
Si annunciano alcuni risultati relativi agli automorfismi infinitesimali quaternionali, in particolare una formula di tipo Bott che lega i loro zeri con i numeri simplettici di Pontrjagin.
Canonical contact forms on spherical CR manifolds
We construct the CR invariant canonical contact form on scalar positive spherical CR manifold , which is the CR analogue of canonical metric on locally conformally flat manifold constructed by Habermann and Jost. We also construct another canonical contact form on the Kleinian manifold , where is a convex cocompact subgroup of and is the discontinuity domain of . This contact form can be used to prove that is scalar positive (respectively, scalar negative, or scalar vanishing) if and...
Canonical form on a groupoid related to regular prolongations of Lie groups
Canonical forms for separability structures with less than five Killing tensors
Canonical metric on the domain of discontinuity of a kleinian group
Canonical nonlinear connections in the multi-time Hamilton geometry.
Canonical Poisson-Nijenhuis structures on higher order tangent bundles
Let M be a smooth manifold of dimension m>0, and denote by the canonical Nijenhuis tensor on TM. Let Π be a Poisson bivector on M and the complete lift of Π on TM. In a previous paper, we have shown that is a Poisson-Nijenhuis manifold. Recently, the higher order tangent lifts of Poisson manifolds from M to have been studied and some properties were given. Furthermore, the canonical Nijenhuis tensors on are described by A. Cabras and I. Kolář [Arch. Math. (Brno) 38 (2002), 243-257],...
Canonical Relations Defined by Intersecting Hypersurfaces in a Symplectic Manifold.