Comportement asymptotique du mouvement brownien sur une variété homogène à courbure négative ou nulle
Composition of some singular Fourier integral operators and estimates for restricted -ray transforms
We establish a composition calculus for Fourier integral operators associated with a class of smooth canonical relations . These canonical relations, which arise naturally in integral geometry, are such that : is a Whitney fold and : is a blow-down mapping. If , , then a class of pseudodifferential operators with singular symbols. From this follows boundedness of with a loss of 1/4 derivative.
Compositions, Generated by Special Nets in Affinely Connected Spaces
Special nets which characterize Cartesian, geodesic, Chebyshevian, geodesic- Chebyshevian and Chebyshevian-geodesic compositions are introduced. Con- ditions for the coefficients of the connectedness in the parameters of these special nets are found.
Compression Semigroups of Open Orbits on Real Flag Manifolds.
Computation of polar moments of inertia with Holditch type theorem.
Computational studies of conserved mean-curvature flow
The paper presents the results of numerical solution of the evolution law for the constrained mean-curvature flow. This law originates in the theory of phase transitions for crystalline materials and describes the evolution of closed embedded curves with constant enclosed area. It is reformulated by means of the direct method into the system of degenerate parabolic partial differential equations for the curve parametrization. This system is solved numerically and several computational studies are...
Computational studies of non-local anisotropic Allen-Cahn equation
The paper presents the results of numerical solution of the Allen-Cahn equation with a non-local term. This equation originally mentioned by Rubinstein and Sternberg in 1992 is related to the mean-curvature flow with the constraint of constant volume enclosed by the evolving curve. We study this motion approximately by the mentioned PDE, generalize the problem by including anisotropy and discuss the computational results obtained.
Computational study of the Willmore flow on graphs
Computations of Nambu-Poisson cohomologies.
Comtrans algebras and their physical applications
Conal orders on homogeneous spaces.
Concentrated monotone measures with non-unique tangential behavior in
We show that for every there is a set such that is a monotone measure, the corresponding tangent measures at the origin are non-conical and non-unique and has the -dimensional density between and everywhere in the support.
Concerning a type of Sobolev inequality on the sphere.
Concerning Connections on Associated Bundles
Concomitanza, conseguenti identità di struttura e leggi di conservazione
Conditions de compatibilité pour une hypersurface singulière en mécanique relativiste des milieux continus
Conditions d’unicité pour le propagateur du champ scalaire dans l’univers de de Sitter
Conditions for integrability of a 3-form
We find necessary and sufficient conditions for the integrability of one type of multisymplectic 3-forms on a 6-dimensional manifold.
Conditions for invariant submanifold of a manifold with the (fi, psi, eta, G)-structure
Conditions for the algebraic determination of the metric from the curvature.