搜索结果: 31-44 共查到“数学 manifold”相关记录44条 . 查询时间(0.119 秒)
An introduction of a combined space-time manifold
4-manifolds dark matter dual universe invisible energy
2010/9/15
This paper introduces the term, ”combined manifold,” which essentially is the graph of a diffeomorphism from one manifold to another.Following a previously published article about “invisible energies”...
Connections on Complex Finsler Manifold
complex Minkowski functional complex Finsler manifold
2007/12/11
We introduce Finsler metric on complex manifold and discuss connections induced by this metric.
Reduction of Volume-preserving Flows on an n-dimensional Manifold
non-autonomous lienard system periodic solution
2007/12/10
A geometric reduction procedure for volume-preserving flows with a volume-preserving symmetry on an n-dimensional manifold is obtained. Instead of the coordinate-dependent theory and the concrete coor...
The Geometric Construction of WZW Effective Action in
Noncommutative Manifold
noncommutative space WZW effective action close cochain
consistent anomaly
2007/8/15
2002Vol.37No.3pp.349-352DOI:
The Geometric Construction of WZW Effective Action in
Noncommutative Manifold
HOU Bo-Yu, WANG Yong-Qiang, YANG Zhan-Ying and YUE Rui-Hong
In...
CR-Submanifolds of an S-manifold
CR-submanifolds S-manifold CR-submanifold of an S-manifold
2010/2/25
The study of CR-submanifolds of a Kaehler manifold was initiated by Bejancu [1]. Since then many papers have appeared on CR-submanifolds. The purpose of this paper is to studied the CR-submanifolds of...
Semi-Slant Submanifolds of a Nearly Kaehler Manifold
Slant Semi-slant totally umbilical totally geodesic
2010/2/26
The aim in the present paper is to study some basic geometric properties of semi-slant submanifolds of a nearly Kaehler manifold.
Some Curvature Tensors on a Trans-Sasakian Manifold
Trans-Sasakian projectively flat concircularly flat
2010/2/26
The object of the present paper is to study the geometry of trans-Sasakian manifold when it is projectively semi-symmetric, Weyl semi-symmetric and concircularly semi-symmetric.
F-Invariant Submanifolds of Kaehlerian Product Manifold
Kaehlerian Product Manifold Mixed Geodesic Submanifold Locally Decomposable Riemannian Manifold and Constant Holomorphic Sectional Curved Manifold
2010/2/26
In this paper, the geometry of F-invariant submanifolds of a Kaehlerian product manifold is studied. The fundamental properties of these submanifolds are investigated such as pseudo umbilical, curvatu...
Coisotropic Submanifolds of a Semi-Riemannian Manifold
Semi-Riemannian manifold Lightlike submanifolds Coisotropic submanifolds
2010/2/26
In this paper, we study coisotropic submanifolds of a semi-Riemannian manifold. We investigate the integrability condition of the screen distribution and give a necessary and sufficient condition on R...
On Invariant Submanifolds of Riemannian Warped Product Manifold
Riemannian Warped Product Manifold Vertical and Horizontal Distributions Pseudo-Umbilical Submanifold Curvature-Invariant Submanifold
2010/3/1
In this paper, we generalize the geometry of the invariant submanifolds of Riemannian product manifold to the geometry of the invariant submanifolds of Riemannian warped product manifold. We investiga...
Holomorphic Functions of Exponential Growth on Abelian Coverings of a Projective Manifold
Holomorphic Functions Exponential Growth Projective Manifold
2010/10/29
Let M be a projective manifold, p:M_{G} --> M a regular covering over M with a free abelian transformation group G. We describe holomorphic functions on M_{G} of an exponential growth with respect to...
We present a new, more elementary proof of the Freedman-Teichner result that the geometric classification techniques (surgery, s-cobordism, and pseudoisotopy) hold for topological 4-manifolds with gr...
Any 3-manifold 1-dominates at most finitely many geometric 3-manifolds
Any 3-manifold 1-dominates finitely geometric 3-manifolds
2010/10/29
In this paper, we proved that any closed orientable 3-manifold 1-dominates at most finitely many geometric 3-manifolds
On the Cohomology Ring of the Infinite Flag Manifold LG/D
Cohomology Ring Infinite Flag Manifold LG/D
2010/3/4
In this work, we discuss the calculation of cohomology rings of LG / T. First we describe the root system and Weyl group of LG, then we give some homotopy equivalences on the loop groups and homogeneo...