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In this article, we find three isometric models of the Funk disc: Finsler upper half of the hyperboloid of two sheets model, the Finsler band model and the Finsler upper hemi sphere model; and we also find two new models of the…

微分几何 · 数学 2023-06-13 Ashok Kumar , Hemangi Madhusudan Shah , Bankteshwar Tiwari

It is known that a simply connected Riemann surface satisfies the isoperimetric equality if and only if it has constant Gaussian curvature. In this article, we show that Randers Poincar\'e disc satisfies the isoperimetric equality with…

In this paper, we construct the Funk-Finsler structure in various models of the hyperbolic plane. In particular, in the unit disc of the Klein model, it turns out to be a Randers metric, which is a non-Berwald Douglas metric. Further, using…

微分几何 · 数学 2024-01-11 Ashok Kumar , Hemangi Madhusudan Shah , Bankteshwar Tiwari

In this paper we study isometry-invariant Finsler metrics on inner product spaces over $\mathbb{R}$ or $\mathbb{C}$, i.e. the Finsler metrics which do not change under the action of all isometries of the inner product space. We give a new…

微分几何 · 数学 2019-08-27 Eugene Bilokopytov

In this paper, we {\it find} the Finsler structure of the Apollonian weak metric on the open unit disc in $\mathbb{R}^2$, which turns out to be a Randers type Finsler structure and we call it as Apollonian weak-Finsler structure. In fact…

微分几何 · 数学 2025-09-24 Alok Kumar Pandey , Ashok Kumar , Bankteshwar Tiwari

In this paper, we first establish an equivalence theorem of Minkowski spaces by using results in centro-affine differential geometry. As an application in Finsler geometry, we gives some new characterizations of Berwald spaces.

微分几何 · 数学 2018-01-11 Ming Li

We explore a connection between the Finslerian area functional based on the Busemann-Hausdorff-volume form, and well-investigated Cartan functionals to solve Plateau's problem in Finsler 3-space, and prove higher regularity of solutions.…

微分几何 · 数学 2014-01-29 Patrick Overath , Heiko von der Mosel

Two geodesically (projectively) equivalent Finsler metrics determine a set of invariant volume forms on the projective sphere bundle. Their proportionality factors are geodesically invariant functions and hence they are first integrals.…

微分几何 · 数学 2022-08-02 Ioan Bucataru

The cosmological models called $\alpha$-attractors provide an excellent fit to the latest observational data. Their predictions $n_{s} = 1-2/N$ and $r = 12\alpha/N^{2}$ are very robust with respect to the modifications of the inflaton…

高能物理 - 理论 · 物理学 2016-01-20 Renata Kallosh , Andrei Linde

Finsler geometry naturally appears in the description of various physical systems. In this review I divide the emergence of Finsler geometry in physics into three categories: as dual description of dispersion relations, as most general…

广义相对论与量子宇宙学 · 物理学 2019-11-01 Christian Pfeifer

We prove that every Riemannian metric on the 2-disc such that all its geodesics are minimal, is a minimal filling of its boundary (within the class of fillings homeomorphic to the disc). This improves an earlier result of the author by…

微分几何 · 数学 2011-10-03 Sergei Ivanov

In this paper, we study the spectral problem on a compact Finsler manifold with or without boundary. More precisely, given a certain collection of sets in Sobolev space $H^{1,2}(M)$ and a dimension-like function, we can define a…

微分几何 · 数学 2019-07-02 Zhongmin Shen , Wei Zhao

The main facts of the geometry of Finslerian 3-spinors are formulated. The close connection between Finslerian 3-spinors and vectors of the 9-dimensional linear Finslerian space is established. The isometry group of this space is described.…

数学物理 · 物理学 2011-02-11 A. V. Solov'yov

A particular Finsler-metric proposed in [1,2] and describing a geometry with a preferred null direction is characterized here as belonging to a subclass contained in a larger class of Finsler-metrics with one or more preferred directions…

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

In the present work, we wanted to find the possible way in order to make the equivalence between non-commutative and Finsler geometries as two useful mathematical tools. Based on this purpose, we were concerned to search this possibility by…

高能物理 - 理论 · 物理学 2019-08-19 J. Sadeghi , Z. Nekouee , A. Behzadi

In this paper, we answer some natural questions on symmetrisation and more general combinations of Finsler metrics, with a view towards applications to Funk and Hilbert geometries and to metrics on Teichm{\"u}ller spaces. For a general…

微分几何 · 数学 2025-06-05 Ismail Saglam , Ken'Ichi Ohshika , Athanase Papadopoulos

We present two extensions of the one dimensional free Poincar\'e inequality similar in spirit to two classical refinements.

概率论 · 数学 2014-09-30 Christian Houdre , Ionel Popescu

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 provide a functional characterization of isometries between non-reversible Finsler manifolds, in the form of a generalization of the Myers-Nakai Theorem for Riemannian manifolds. We show that, since non-reversible Finsler manifolds are a…

泛函分析 · 数学 2025-01-07 Francisco Venegas M

In this work an intrinsic projectively invariant distance is used to establish a new approach to the study of projective geometry in Finsler space. It is shown that the projectively invariant distance previously defined is a constant…

微分几何 · 数学 2013-10-03 M. Sepasi , B. Bidabad
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