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$𝒞^{0}$ -rigidity of characteristics in symplectic geometry

Emmanuel Opshtein (2009)

Annales scientifiques de l'École Normale Supérieure

The paper concerns a $𝒞^{0}$ -rigidity result for the characteristic foliations in symplectic geometry. A symplectic homeomorphism (in the sense of Eliashberg-Gromov) which preserves a smooth hypersurface also preserves its characteristic foliation.

(..., ...)-and (..., ...)-connexions of an almost complex and an almost product space.

M. Prvanovic (1977)

Publications de l'Institut Mathématique [Elektronische Ressource]

$ℝ$ -complex Finsler spaces with $(α, β)$ -metric.

Aldea, Nicoleta, Purcaru, Monica (2008)

Novi Sad Journal of Mathematics

$(h, Φ)$ -entropy differential metric

María Luisa Menéndez, Domingo Morales, Leandro Pardo, Miquel Salicrú (1997)

Applications of Mathematics

Burbea and Rao (1982a, 1982b) gave some general methods for constructing quadratic differential metrics on probability spaces. Using these methods, they obtained the Fisher information metric as a particular case. In this paper we apply the method based on entropy measures to obtain a Riemannian metric based on $(h, Φ)$ -entropy measures (Salicrú et al., 1993). The geodesic distances based on that information metric have been computed for a number of parametric families of distributions. The use of geodesic...

$(m + 1)$ -dimensional spacelike parallel $p_{i}$ -equidistant ruled surfaces in the Minkowski space $R_{1}^{n}$ .

Masal, Melek (2006)

Novi Sad Journal of Mathematics

... Minimizing Currents.

Klaus Steffen, Frank Duzaar (1993)

Manuscripta mathematica

$(n - 1)$ -dimensional generalized null scrolls in $R_{1}^{n}$ .

Balgetir, Handan, Ergüt, Mahmut (2003)

Acta Mathematica Academiae Paedagogicae Nyí regyháziensis. New Series [electronic only]

$𝔓$ -spaces of Iwasawa type and algebraic rank one.

Druetta, M.J. (2002)

Rendiconti del Seminario Matematico

$\partial_{ψ}$ - difference calculus Bernoulli-Taylor formula

Krot, Ewa (2003)

Proceedings of the 22nd Winter School "Geometry and Physics"

0-tight surfaces with boundary and the total curvature of curves in surfaces

Wolfgang Kühnel (1981)

Colloquium Mathematicae

$1$ -cocycles on the group of contactomorphisms on the supercircle $S^{1 | 3}$ generalizing the Schwarzian derivative

Boujemaa Agrebaoui, Raja Hattab (2016)

Czechoslovak Mathematical Journal

The relative cohomology $H_{diff}^{1} (𝕂 (1 | 3), 𝔬𝔰𝔭 (2, 3); 𝒟_{λ, μ} (S^{1 | 3}))$ of the contact Lie superalgebra $𝕂 (1 | 3)$ with coefficients in the space of differential operators $𝒟_{λ, μ} (S^{1 | 3})$ acting on tensor densities on $S^{1 | 3}$ , is calculated in N. Ben Fraj, I. Laraied, S. Omri (2013) and the generating $1$ -cocycles are expressed in terms of the infinitesimal super-Schwarzian derivative $1$ -cocycle $s (X_{f}) = D_{1} D_{2} D_{3} (f) α_{3}^{1 / 2}$ , $X_{f} \in 𝕂 (1 | 3)$ which is invariant with respect to the conformal subsuperalgebra $𝔬𝔰𝔭 (2, 3)$ of $𝕂 (1 | 3)$ . In this work we study the supergroup case. We give an explicit construction of $1$ -cocycles of the group...

Currently displaying 1 – 20 of 688

Page 1 Next

Displaying 1 – 20 of 688

$𝒞^{0}$ -rigidity of characteristics in symplectic geometry

(..., ...)-and (..., ...)-connexions of an almost complex and an almost product space.

$ℝ$ -complex Finsler spaces with $(α, β)$ -metric.

$(h, Φ)$ -entropy differential metric

$(m + 1)$ -dimensional spacelike parallel $p_{i}$ -equidistant ruled surfaces in the Minkowski space $R_{1}^{n}$ .

... Minimizing Currents.

$(n - 1)$ -dimensional generalized null scrolls in $R_{1}^{n}$ .

$𝔓$ -spaces of Iwasawa type and algebraic rank one.

$\partial_{ψ}$ - difference calculus Bernoulli-Taylor formula

0-tight surfaces with boundary and the total curvature of curves in surfaces

$1$ -cocycles on the group of contactomorphisms on the supercircle $S^{1 | 3}$ generalizing the Schwarzian derivative

1 Structure de contact et équations aux dérivées partielles d'après V. V. Lychagin

100th anniversary of birthday of Eduard Čech

(1,1)-geodesic maps into Grassmann manifolds.

15-vertex triangulations of an 8-manifold.

1-type submanifolds on non-Euclidean complex space forms.

2- II Inégalités fortes de Morse

2 Inégalités de Morse d'après E. Witten

2-Killing vector fields on Riemannian manifolds.

3 Classification des plongements isotropes d'après A. Weinstein

Currently displaying 1 – 20 of 688