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Certain many-particle Hardy inequalities are derived in a simple and systematic way using the so-called ground state representation for the Laplacian on a subdomain of $\mathbb{R}^n$. This includes geometric extensions of the standard Hardy…

Mathematical Physics · Physics 2015-04-14 Douglas Lundholm

This is an introduction to geometric algebra, an alternative to traditional vector algebra that expands on it in two ways: 1. In addition to scalars and vectors, it defines new objects representing subspaces of any dimension. 2. It defines…

Mathematical Physics · Physics 2012-05-29 Eric Chisolm

Horizontal endomorphisms, almost complex structures, vertical, horizontal and complete lifts on prolongation of a Lie algebroid are considered. Then using exact sequences, semisprays are constructed. Moreover, important geometrical objects…

Differential Geometry · Mathematics 2013-10-29 Esmaeil Peyghan

A Fuchsian polyhedron in hyperbolic space is a polyhedral surface invariant under the action of a Fuchsian group of isometries (i.e. a group of isometries leaving globally invariant a totally geodesic surface, on which it acts cocompactly).…

Differential Geometry · Mathematics 2007-05-23 François Fillastre

The objective of this article is to build up a general theory of geometrical optics for spinning light rays in an inhomogeneous and anisotropic medium modeled on a Finsler manifold. The prerequisites of local Finsler geometry are reviewed…

Mathematical Physics · Physics 2008-11-26 Christian Duval

In this paper, we consider a Finsler space with a Randers change of Quartic metric F = $\sqrt[4]{\alpha^4 + \beta^4} + \beta$. The conditions for this space to be with reversible geodesics are obtained. Further, we study some geometrical…

Differential Geometry · Mathematics 2018-12-27 Gauree Shanker , Ruchi Kaushik Sharma

For a family $\mathcal{C}$ of properly embedded curves in the 2-dimensional disk $\mathbb{D}^{2}$ satisfying certain uniqueness properties, we consider convex polygons $P\subset \mathbb{D}^{2}$ and define a metric $d$ on $P$ such that…

Metric Geometry · Mathematics 2023-11-13 Charalampos Charitos , Ioannis Papadoperakis , Georgios Tsapogas

This paper is the first in a series of paper where we describe the differential operators on general nonlinear metric measure spaces, namely, the Finsler spaces. We try to propose a general method for gradient estimates of the positive…

Differential Geometry · Mathematics 2024-08-02 Bin Shen

The space of K\"ahler metrics can, on the one hand, be approximated by subspaces of algebraic metrics, while, on the other hand, can be enlarged to finite-energy spaces arising in pluripotential theory. The latter spaces are realized as…

Differential Geometry · Mathematics 2023-09-19 Tamás Darvas , Chinh H. Lu , Yanir A. Rubinstein

A Finsler metric is geodesically reversible if geodesics remain geodesics after a change of orientation. Asymmetric norms on vector spaces and Funk metrics in the interior of convex bodies are examples of geodesically reversible metrics…

Differential Geometry · Mathematics 2021-10-01 Juan-Carlos Alvarez Paiva

We work on a 4-manifold equipped with Lorentzian metric $g$ and consider a volume-preserving diffeomorphism which is the unknown quantity of our mathematical model. The diffeomorphism defines a second Lorentzian metric $h$, the pullback of…

Mathematical Physics · Physics 2021-01-05 Matteo Capoferri , Dmitri Vassiliev

Kinematics in Finsler space is investigated. It is showed that the result based on the kinematics with a special Finsler structure is in good agreement with the reported value of secular trend in the astronomical unit, $d{\rm…

General Relativity and Quantum Cosmology · Physics 2015-05-14 X. Li , Z. Chang

This paper introduces a novel theoretical framework for identifying Lagrangian Coherent Structures (LCS) in manifolds with non-constant curvature, extending the theory to Finsler manifolds. By leveraging Riemannian and Finsler geometry, we…

General Mathematics · Mathematics 2025-01-14 Rômulo Damasclin Chaves dos Santos , Jorge Henrique de Oliveira Sales

Physical foundations for relativistic spacetimes are revisited, in order to check at what extent Finsler spacetimes lie in their framework. Arguments based on inertial observers (as in the foundations of Special Relativity and Classical…

General Relativity and Quantum Cosmology · Physics 2020-04-21 Antonio Bernal , Miguel Ángel Javaloyes , Miguel Sánchez

We review recent developments in cosmological models based on Finsler geometry and extensions of general relativity within this framework. Finsler geometry generalizes Riemannian geometry by allowing the metric tensor to depend on position…

General Relativity and Quantum Cosmology · Physics 2025-06-24 Amine Bouali , Himanshu Chaudhary , Lehel Csillag , Rattanasak Hama , Tiberiu Harko , Sorin V. Sabau , Shahab Shahidi

We consider a triality between the Zermelo navigation problem, the geodesic flow on a Finslerian geometry of Randers type, and spacetimes in one dimension higher admitting a timelike conformal Killing vector field. From the latter…

General Relativity and Quantum Cosmology · Physics 2009-05-05 G. W. Gibbons , C. A. R. Herdeiro , C. M. Warnick , M. C. Werner

When the Maxwell equations are geometrized, the Maxwell Lagrangian is usually reduced to the Yang-Mills Lagrangian. In this case, the effective quadratic metric, usually corresponding to the Riemannian metric of our space, is considered.…

Mathematical Physics · Physics 2020-02-14 Dmitry S. Kulyabov , Anna V. Korolkova , Tatyana R. Velieva , Anastasia V. Demidova

In a recent paper, it was claimed that any homogeneous Finsler space of odd dimension admits a homogeneous geodesic through any point. For the proof, the algebraic method dealing with the reductive decomposition of the Lie algebra of the…

Differential Geometry · Mathematics 2019-03-11 Zdeněk Dušek

In this paper I shall show how notions of Finsler geometry can be used to construct a new type of geometry using a scalar field, f, on the cotangent bundle of a differentiable manifold, M. This new geometry will be called Lorentzian…

General Relativity and Quantum Cosmology · Physics 2020-09-08 Gregory W. Horndeski

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…

Differential Geometry · Mathematics 2010-09-14 Erasmo Caponio , Miguel Angel Javaloyes , Antonio Masiello