Results 41 to 50 of about 1,072 (60)

Orthogonal direct sum of Lie groups [PDF]

open access: yesarXiv, 2017
By this short preface we show the main idea and we will bring some definitions and concepts in each section.
arxiv  

Jacobi groupoids and generalized Lie bialgebroids [PDF]

open access: yesarXiv, 2002
Jacobi groupoids are introduced as a generalization of Poisson and contact groupoids and it is proved that generalized Lie bialgebroids are the infinitesimal invariants of Jacobi groupoids. Several examples are discussed.
arxiv  

Legendrian Vertical Circles in Small Seifert Spaces [PDF]

open access: yesarXiv, 2003
We discuss the relations between the $e_0$ invariants of a small Seifert space and the twisting numbers of Legendrian vertical circles in it.
arxiv  

Tight Contact Small Seifert Spaces with $e_0\neq0,-1,-2$ [PDF]

open access: yesarXiv, 2004
We classify up to isotopy the tight contact structures on small Seifert spaces with $e_0\neq0,-1,-2$. (The first version contains on the $e_0<-2$ case.)
arxiv  

On the Slicing Genus of Legendrian Knots [PDF]

open access: yesarXiv, 2005
We apply Heegaard-Floer homology theory to establish generalized slicing Bennequin inequalities closely related to a recent result of T. Mrowka and Y. Rollin proved using Seiberg-Witten monopoles.
arxiv  

Pointed k-surfaces [PDF]

open access: yesarXiv, 2005
Following on from ``Hyperbolic Plateau problems'' (by the same author), we provide a complete geometric description of solutions to the Plateau problem $(S,\phi)$ when $S$ is a compact Riemann surface with a finite number of points removed.
arxiv  

Vanishing of the logarithmic trace of generalized Szegö projectors [PDF]

open access: yesarXiv, 2006
We show that the logarithmic trace of generalized Szeg\"o projectors on compact contact manifolds vanishes identically.
arxiv  

A Characterization of Minimal Surfaces in $S^5$ with Parallel Normal Vector Field [PDF]

open access: yesarXiv, 2006
In this paper we proof that the Holomorphic angle for compact minimal surfaces in the sphere $S^5$ with constant Contact angle and with a parallel normal vector field must be constant.
arxiv  

A Remark on Compact Minimal Surfaces in $S^5$ with Non-Negative Gaussian Curvature [PDF]

open access: yesarXiv, 2007
In this paper we classify compact minimal surfaces in $S^5$ with non-negative Gaussian curvature using the notion of a contact angle.
arxiv  

Mok-Siu-Yeung type formulas on contact locally sub-symmetric spaces [PDF]

open access: yesarXiv, 2007
We derive Mok-Siu-Yeung type formulas for horizontal maps from compact contact locally sub-symmetric spaces into strictly pseudoconvex CR manifolds and we obtain some rigidity theorems for the horizontal pseudoharmonic maps.
arxiv  

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