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相关论文: Clifford-Wolf homogeneous Randers spaces

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The collection of all projective vector fields on a Finsler space $(M, F)$ is a finite-dimensional Lie algebra with respect to the usual Lie bracket, called the projective algebra denoted by $p(M,F)$ and is the Lie algebra of the projective…

微分几何 · 数学 2011-09-01 Mehdi Rafie-Rad , Bahman Rezaei

This is a survey paper on our recent works concerning the classification of positively curved homogeneous Finsler spaces, and some related topics. At the final part, we present some open problems in this field.

微分几何 · 数学 2016-12-28 Shaoqiang Deng , Ming Xu

In this paper, we use the flag curvature formula for homogeneous Finsler spaces in our previous work to classify odd dimensional smooth coset spaces admitting positively curved reversible homogeneous Finsler metrics. We will show that the…

微分几何 · 数学 2015-05-22 Ming Xu , Shaoqiang Deng

The study of curvature properties of homogeneous Finsler spaces with $(\alpha, \beta)$-metrics is one of the central problems in Riemann-Finsler geometry. In this paper, we consider homogeneous Finsler spaces with square metric and Randers…

微分几何 · 数学 2021-03-04 Sarita Rani , Gauree Shanker

Is the Doppler interpretation of galaxy redshifts in a Friedmann-Lemaitre-Robertson-Walker (FLRW) model valid in the context of the approach to comoving spatial sections pioneered by de Sitter, Friedmann, Lemaitre and Robertson, i.e.…

宇宙学与河外天体物理 · 物理学 2015-05-14 Boudewijn F. Roukema

In this paper we prove that the holonomy group of a simply connected locally projectively flat Finsler manifold of constant curvature is a finite dimensional Lie group if and only if it is flat or it is Riemannian.

微分几何 · 数学 2013-04-16 Zoltan Muzsnay , Peter T. Nagy

The geometric calculus based on Clifford algebra is a very useful tool for geometry and physics. It describes a geometric structure which is much richer than the ordinary geometry of spacetime. A Clifford manifold ($C$-space) consists not…

高能物理 - 理论 · 物理学 2007-05-23 Matej Pavsic

Let $(M,F)$ be a compact connected homogeneous non-Riemannian Finsler manifold with $\dim M>1$. We prove that any conformal vector field on $(M,F)$ is a Killing vector field. Further more, we prove that $\rho F$ is a homogeneous Finsler…

微分几何 · 数学 2024-02-06 Ming Xu

In this note we define a distance between two pointed locally integral current spaces. We prove that a sequence of pointed locally integral current spaces converges with respect to this distance if and only if it converges in the sense of…

度量几何 · 数学 2019-08-01 Shu Takeuchi

In this paper, first we study surjective isometries (not necessarily linear) between completely regular subspaces $A$ and $B$ of $C_0(X,E)$ and $C_0(Y,F)$ where $X$ and $Y$ are locally compact Hausdorff spaces and $E$ and $F$ are normed…

泛函分析 · 数学 2020-03-04 Mojtaba Mojahedi , Fereshteh Sady

In this paper, we consider a homogeneous manifold $G/H$ in which $G$ is a compact connected simply connected simple Lie group and $H$ is a closed connected subgroup of $G$. We define standard and very standard homogeneous Finsler metrics on…

微分几何 · 数学 2025-05-06 Xiyun Xu , Ming Xu

We study in this paper three natural notions of convergence of homogeneous manifolds, namely infinitesimal, local and pointed, and their relationship with a fourth one, which only takes into account the underlying algebraic structure of the…

微分几何 · 数学 2014-02-26 Jorge Lauret

We give a positive answer to the Chavel's conjecture [J. Diff. Geom. 4 (1970), 13-20]: a simply connected rank one normal homogeneous space is symmetric if any pair of conjugate points are isotropic. It implies that all simply connected…

微分几何 · 数学 2012-03-22 J. C. González-Dávila , A. M. Naveira

This paper is concerned with the holonomy of a class of spaces which includes Landsberg spaces of Finsler geometry. The methods used are those of Lie groupoids and algebroids as developed by Mackenzie. We prove a version of the…

微分几何 · 数学 2010-06-01 M. Crampin , D. J. Saunders

This paper considers fundamental issues related to Finslerian isometries, submetries, distance and geodesics. It is shown that at each point of a Finsler manifold there is a distance coordinate system. Using distance coordinates, a simple…

微分几何 · 数学 2014-06-23 Bernadett Aradi , David Csaba Kertesz

The Floer homology of (RP^n,T^n) is calculated, for n odd.

辛几何 · 数学 2009-02-09 Garrett Alston

A manifold is locally \emph{$k$-fold symmetric}, if for any point and any $k$-dimensional vector subspace tangent to this point there exists a local isometry such that this point is a fixed point and the differential of the isometry…

微分几何 · 数学 2018-02-05 Shaoqiang Deng , Vladimir S. Matveev

A smooth curve on $G/H$ is called a Riemannian equigeodesic if it is a homogeneous geodesic for all $G$-invariant Riemannian metrics on $G/H$. With the $G$-invariant Riemannian metric replaced by other classes of $G$-invariant metrics, we…

微分几何 · 数学 2022-09-02 Ju Tan , Ming Xu

In this paper, it is shown that a large set of connections on a suitable sub-bundle of the tangent bundle of a Finsler Manifold can be used to study all the properties of convex neighbourhoods with respect to the Finsler Metric, which are…

微分几何 · 数学 2010-06-07 O. M. Amici , B. C. Casciaro

A homogeneous Riemannian space $(M= G/H,g)$ is called a geodesic orbit space (shortly, GO-space) if any geodesic is an orbit of one-parameter subgroup of the isometry group $G$. We study the structure of compact GO-spaces and give some…

微分几何 · 数学 2009-09-30 D. V. Alekseevsky , Yu. G. Nikonorov