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Displaying 1361 – 1380 of 8745

Conformally closed Finsler spaces.

Matsumoto, Makoto (1999)

Balkan Journal of Geometry and its Applications (BJGA)

Conformally covariant field equations

J. Mickelsson, J. Niederle (1975)

Annales de l'I.H.P. Physique théorique

Conformally equivariant quantization : existence and uniqueness

Christian Duval, Pierre Lecomte, Valentin Ovsienko (1999)

Annales de l'institut Fourier

We prove the existence and the uniqueness of a conformally equivariant symbol calculus and quantization on any conformally flat pseudo-riemannian manifold $(M, g)$ . In other words, we establish a canonical isomorphism between the spaces of polynomials on $T^{*} M$ and of differential operators on tensor densities over $M$ , both viewed as modules over the Lie algebra $o (p + 1, q + 1)$ where $p + q = dim (M)$ . This quantization exists for generic values of the weights of the tensor densities and we compute the critical values of the weights yielding...

Conformally flat contact metric manifolds with $Q ξ = ϱ ξ$ .

Gouli-Andreou, Florence, Tsolakidou, Niki (2004)

Beiträge zur Algebra und Geometrie

Conformally flat Lorentzian three-spaces with various properties of symmetry and homogeneity

Giovanni Calvaruso (2010)

Archivum Mathematicum

We study conformally flat Lorentzian three-manifolds which are either semi-symmetric or pseudo-symmetric. Their complete classification is obtained under hypotheses of local homogeneity and curvature homogeneity. Moreover, examples which are not curvature homogeneous are described.

Conformally flat manifolds, Kleinian groups and scalar curvature.

S.-T. Yau, R. Schoen (1988)

Inventiones mathematicae

Conformally flat pseudo-symmetric spaces of constant type

Giovanni Calvaruso (2006)

Czechoslovak Mathematical Journal

We give the complete classification of conformally flat pseudo-symmetric spaces of constant type.

Conformally flat semi-symmetric spaces

Giovanni Calvaruso (2005)

Archivum Mathematicum

We obtain the complete classification of conformally flat semi-symmetric spaces.

Conformally flat submanifolds

Jean-Marie Morvan, Georges Zafindratafa (1986/1987)

Annales de la Faculté des sciences de Toulouse : Mathématiques

Conformally Flat Submanifolds of Euclidean Space.

John Douglas Moore (1977)

Mathematische Annalen

Conformally geodesic mappings satisfying a certain initial condition

Hana Chudá, Josef Mikeš (2011)

Archivum Mathematicum

In this paper we study conformally geodesic mappings between pseudo-Riemannian manifolds $(M, g)$ and $(\bar{M}, \bar{g})$ , i.e. mappings $f : M \to \bar{M}$ satisfying $f = f_{1} \circ f_{2} \circ f_{3}$ , where $f_{1}, f_{3}$ are conformal mappings and $f_{2}$ is a geodesic mapping. Suppose that the initial condition $f^{*} \bar{g} = k g$ is satisfied at a point $x_{0} \in M$ and that at this point the conformal Weyl tensor does not vanish. We prove that then $f$ is necessarily conformal.

Conformally invariant wave equations in $3 + 2$ -de Sitter linear gravity

Gazeau, J. P., Hans, M. (1989)

Proceedings of the Winter School "Geometry and Physics"

Conformally Osserman Lorentzian manifolds

Novica Blažić (2005)

Kragujevac Journal of Mathematics

Conformally symmetric spaces admitting special quadratic first integrals

W. Roter (1975)

Colloquium Mathematicae

Congruences of surfaces in $ℂ^{2}$

Mohamed Afwat (1976)

Časopis pro pěstování matematiky

Conic degeneration of the Dirac operator

R. Seeley (1990)

Colloquium Mathematicae

Conjecture de H. Hopf sur les produits de variétés

J.-P. Bourguignon, A. Deschamps, P. Sentenac (1972)

Annales scientifiques de l'École Normale Supérieure

Conjugate and cut loci of a two-sphere of revolution with application to optimal control

Bernard Bonnard, Jean-Baptiste Caillau, Robert Sinclair, Minoru Tanaka (2009)

Annales de l'I.H.P. Analyse non linéaire

Conjugate and cut time in the sub-Riemannian problem on the group of motions of a plane

Yuri L. Sachkov (2010)

ESAIM: Control, Optimisation and Calculus of Variations

The left-invariant sub-Riemannian problem on the group of motions (rototranslations) of a plane SE(2) is studied. Local and global optimality of extremal trajectories is characterized. Lower and upper bounds on the first conjugate time are proved. The cut time is shown to be equal to the first Maxwell time corresponding to the group of discrete symmetries of the exponential mapping. Optimal synthesis on an open dense subset of the state space is described.

Conjugate Connections and Radon's Theorem in Affine Differential Geometry.

F. Dillen, K. Nomizu, L. Vranken (1990)

Monatshefte für Mathematik

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