中文
相关论文

相关论文: Finsler metrics on $1/n$-translation structures on…

200 篇论文

We obtain a result about the existence of only a finite number of geodesics between two fixed non-conjugate points in a Finsler manifold endowed with a convex function. We apply it to Randers and Zermelo metrics. As a by-product, we also…

微分几何 · 数学 2010-09-14 Erasmo Caponio , Miguel Angel Javaloyes , Antonio Masiello

Here, it is introduced a concept of convolution metric in Finslerian Geometry. This convolution metric is a kind of function obtained by a given mathematical operation between two Finslerian metrics. Some basic properties of the Finslerian…

微分几何 · 数学 2022-03-10 Gilbert Nibaruta

In this paper, we introduce and investigate a general transformation or change of Finsler metrics, which is referred to as a generalized $\beta$-conformal change: $$L(x,y) \longrightarrow\overline{L}(x,y) =…

微分几何 · 数学 2015-05-13 Nabil L. Youssef , S. H. Abed , S. G. Elgendi

A Riemannian metric is of constant curvature if and only if it is locally projectively flat. There are infinitely many locally projectively flat Finsler metrics of constant curvature, that are special solutions to the Hilbert's Fourth…

微分几何 · 数学 2007-05-23 Zhongmin Shen

The distance function $\varrho(p,q)$ (or $d(p,q)$) of a distance space (general metric space) is not differentiable in general. We investigate such distance spaces over $\mathbb R^n$, whose distance functions are differentiable like in case…

微分几何 · 数学 2015-05-27 L. Tamássy , D. Cs. Kertész

For compact manifolds with infinite fundamental group we present sufficient topological or metric conditions ensuring the existence of two geometrically distinct closed geodesics. We also show how results about generic Riemannian metrics…

微分几何 · 数学 2022-08-30 Hans-Bert Rademacher , Iskander A. Taimanov

We present a concise new definition of Finsler spacetimes that generalize Lorentzian metric manifolds and provide consistent backgrounds for physics. Extending standard mathematical constructions known from Finsler spaces we show that…

广义相对论与量子宇宙学 · 物理学 2011-08-29 Christian Pfeifer , Mattias N. R. Wohlfarth

This paper presents a new type of surface models constructed on the basis of Finsler geometry. A Finsler metric is defined on the surface by using an underlying vector field, which is an in-plane tilt order. According to the orientation of…

统计力学 · 物理学 2015-06-11 Hiroshi Koibuchi , Hideo Sekino

Let $\operatorname{St}^{n}_{k}\subset\mathbb{R}^{n\times k}$ be the set of all $n\times k$ matrices whose columns are mutually orthogonal and of unit Euclidean length, and let $\mu_{n,k}$ be the surface measure corresponding to this…

经典分析与常微分方程 · 数学 2021-11-18 Nikolaos Chatzikonstantinou

We show that if a Finsler space is conformally automorphic to a Riemannian space and the automorphism is positively homogeneous with respect to tangent vectors, then the indicatrix of the Finsler space is a space of constant curvature. In…

微分几何 · 数学 2010-09-08 G. S. Asanov

We explore the relationship between contact forms on $\mathbb S^3$ defined by Finsler metrics on $\mathbb S^2$ and the theory developed by H. Hofer, K. Wysocki and E. Zehnder in \cite{HWZ,HWZ1}. We show that a Finsler metric on $\mathbb…

微分几何 · 数学 2007-05-23 Adam Harris , Gabriel P. Paternain

We classify the surfaces translating under the flows by sub-affine-critical powers of the Gauss curvature. This, in particular, lists all translating solitons possibly model Type II singularities for convex closed solutions in all positive…

微分几何 · 数学 2024-07-22 Beomjun Choi , Kyeongsu Choi , Soojung Kim

Some general Finsler connections are defined. Emphasis is being made on the Cartan tensor and its derivatives. Vanishing of the hv-curvature tensors of these connections characterizes Landsbergian, Berwaldian as well as Riemannian…

微分几何 · 数学 2007-10-16 B. Bidabad , A. Tayebi

A new geometrical definition of naturally reductive Finsler manifold using geodeic graph is proposed, with a possible generalization. Based on a construction from a recent paper by the authors, Finsler metrics based on naturally reductive…

微分几何 · 数学 2025-10-28 Teresa Arias-Marco , Zdenek Dusek

A systematic study of (smooth, strong) cone structures $\C$ and Lorentz-Finsler metrics $L$ is carried out. As a link between both notions, cone triples $(\Omega,T, F)$, where $\Omega$ (resp. $T$) is a 1-form (resp. vector field) with…

微分几何 · 数学 2020-09-28 Miguel Angel Javaloyes , Miguel Sánchez

It is shown that, on a manifold with a Finsler metric of Lorentzian signature, the lightlike geodesics satisfy the following variational principle. Among all lightlike curves from a point (emission event) to a timelike curve (worldline of…

广义相对论与量子宇宙学 · 物理学 2009-11-11 Volker Perlick

We study the variational problem for $N$-parallel curves on a Finslerian surface by means of Exterior Differential Systems using Griffiths' method. We obtain the conditions when these curves are extremals of a length functional and write…

微分几何 · 数学 2015-02-26 Sorin V. Sabau , Kazuhiro Shibuya

We study the quantitative transfer of uniqueness from the classical to the fractional Calder\'on problem with exterior data. This allows us to deduce the first stability estimates for the principal part of the isotropic fractional…

偏微分方程分析 · 数学 2026-04-14 Hendrik Baers , Angkana Rüland

The Fr\'echet distance is a computational mainstay for comparing polygonal curves. The Fr\'echet distance under translation, which is a translation invariant version, considers the similarity of two curves independent of their location in…

计算几何 · 计算机科学 2025-01-23 Lotte Blank , Jacobus Conradi , Anne Driemel , Benedikt Kolbe , André Nusser , Marena Richter

We investigate existence and uniqueness of p-means and the median of a probability measure on a Finsler manifold, in relation with the convexity of the support of the measure. We prove that the p-mean is the limit point of a continuous time…

微分几何 · 数学 2019-02-20 Marc Arnaudon , Frank Nielsen