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Modern formulation of Finsler geometry of a manifold M utilizes the equivalence between this geometry and the Riemannian geometry of VTM, the vertical bundle over the tangent bundle of M, treating TM as the base space. We argue that this…

广义相对论与量子宇宙学 · 物理学 2011-08-17 Mehrdad Panahi

In this paper, we extend the construction of pressure metrics to Teichm\"uller spaces of surfaces with punctures. This construction recovers Thurston's Riemannian metric on Teichm\"uller spaces. Moreover, we prove the real analyticity and…

动力系统 · 数学 2019-04-30 Lien-Yung Kao

We give a geometric interpretation of Fock--Goncharov positivity and show that bending deformations of Fuchsian representations stabilize a uniform Finsler quasi-convex disk in the symmetric space $\mathrm{PSL}_d(\mathbb…

微分几何 · 数学 2025-07-03 Pierre-Louis Blayac , Ursula Hamenstädt , Théo Marty

In this work we study an anisotropic model of general relativity based on the framework of Finsler geometry. The observed anisotropy of the microwave background radiation is incorporated in the Finslerian structure of space-time. We also…

广义相对论与量子宇宙学 · 物理学 2007-05-23 P. C. Stavrinos , F. I. Diakogiannis

We develop the method of anholonomic frames with associated nonlinear connection (in brief, N--connection) structure and show explicitly how geometries with local anisotropy (various type of Finsler--Lagrange--Cartan--Hamilton geometry) can…

高能物理 - 理论 · 物理学 2007-05-23 Sergiu I. Vacaru

Finsler geometry serves as a fundamental and natural extension of Riemannian geometry, providing a valuable framework for investigating Lorentz violation in spacetime. Previous studies have treated the Finsler structures associated with…

广义相对论与量子宇宙学 · 物理学 2026-01-07 Jie Zhu , Hao Li , Bo-Qiang Ma

We formulate an approach to the geometry of Riemann-Cartan spaces provided with nonholonomic distributions defined by generic off-diagonal and nonsymmetric metrics inducing effective nonlinear and affine connections. Such geometries can be…

广义相对论与量子宇宙学 · 物理学 2008-12-19 Sergiu I. Vacaru

WWe define the notion of a random metric space and prove that with probability one such a space is isometricto the Urysohn universal metric space. The main technique is the study of universal and random distance matrices; we relate the…

表示论 · 数学 2015-06-26 A. M. Vershik

We briefly review some basic concepts of parallel displacement in Finsler geometry. In general relativity, the parallel translation of objects along the congruence of the fundamental observer corresponds to the evolution in time. By…

广义相对论与量子宇宙学 · 物理学 2013-12-18 A. P. Kouretsis , M. Stathakopoulos , P. C. Stavrinos

Metrics on Grassmannians have a wide array of applications: machine learning, wireless communication, computer vision, etc. But the available distances between subspaces of distinct dimensions present problems, and the dimensional asymmetry…

代数几何 · 数学 2022-08-11 André L. G. Mandolesi

This paper is a survey about the Thurston metric on the Teichm\"uller space. The central issue is the constructions of extremal Lipschitz maps between hyperbolic surfaces. We review several constructions, including the original work of…

几何拓扑 · 数学 2023-07-11 Huiping Pan , Weixu Su

Recent links between Finsler Geometry and the geometry of spacetimes are briefly revisited, and prospective ideas and results are explained. Special attention is paid to geometric problems with a direct motivation in Relativity and other…

微分几何 · 数学 2015-06-17 Miguel A. Javaloyes , Miguel Sánchez

We provide analogues for non-orientable surfaces with or without boundary or punctures of several basic theorems in the setting of the Thurston theory of surfaces which were developed so far only in the case of orientable surfaces. Namely,…

几何拓扑 · 数学 2013-10-02 Athanase Papadopoulos , Robert C. Penner

We study Rellich inequalities associated to higher-order elliptic operators in the Euclidean space. The inequalities are expressed in terms of an associated Finsler metric. In the case of half-spaces we obtain the sharp constant while for a…

偏微分方程分析 · 数学 2021-08-06 Gerassimos Barbatis , Miltiadis Paschalis

It is shown that the problem of a possible violation of the Lorentz transformations at Lorentz factors $\gamma >5\times 10^{10} ,$ indicated by the situation which has developed in the physics of ultra-high energy cosmic rays (the absence…

广义相对论与量子宇宙学 · 物理学 2015-06-25 G. Yu. Bogoslovsky , H. F. Goenner

We show that every $\mathbb R$-linear surjective isometry between the cotangent spaces to the Teichm\"uller space equipped with the Thurston norm is induced by some isometry between the underlying hyperbolic surfaces, which is an analogue…

几何拓扑 · 数学 2023-01-27 Huiping Pan

In 1986 William P. Thurston introduced the celebrated (asymmetric) Lipschitz distance on the Teichmueller space of a (closed or punctured) surface. In this paper we extend his work to the Teichmueller space of a surface with boundary…

几何拓扑 · 数学 2021-07-29 Daniele Alessandrini , Valentina Disarlo

By using anholonomic frames in (pseudo) Riemannian spaces we define anisotropic extensions of Euclidean Taub-NUT spaces. With respect to coordinate frames such spaces are described by off-diagonal metrics which could be diagonalized by…

高能物理 - 理论 · 物理学 2009-11-07 Sergiu I. Vacaru , Ovidiu Tintareanu-Mircea

In this article we survey all known optimal isosystolic inequalities on two-dimensional Finsler tori involving the following two central notions of Finsler area: the Busemann-Hausdorff area and the Holmes-Thompson area. We also complete the…

微分几何 · 数学 2024-02-13 Florent Balacheff , Teo Gil Moreno de Mora

Following Thurston's geometrisation picture in dimension three, we study geometric manifolds in a more general setting in arbitrary dimensions, with respect to the following problems: (i) The existence of maps of non-zero degree (domination…

几何拓扑 · 数学 2025-08-15 Christoforos Neofytidis