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相关论文: Finsleroid space with angle and scalar product

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The Finslerian extension of the Euclidean metric is proposed and studied under rigorous conditions that the associated indicatrix is regular and convex. The relativistic pseudo-Euclidean metric is extended, too. The extensions show distinct…

数学物理 · 物理学 2009-10-31 G. S. Asanov

We carry out a systematic investigation on floating bodies in real space forms. A new unifying approach not only allows us to treat the important classical case of Euclidean space as well as the recent extension to the Euclidean unit…

微分几何 · 数学 2016-06-27 Florian Besau , Elisabeth M. Werner

Motivated by the relative differential geometry, where the Euclidean normal vector of hypersurfaces is generalized by a relative normalization, we introduce anisotropic area measures of convex bodies, constructed with respect to a gauge…

度量几何 · 数学 2025-06-17 Rolf Schneider

The Hubble constant proves to be the pseudo-Finsleroid--Landsberg factor. The covariantly conserved pseudo-Finsleroid--gravitational tensor is explicitly found after evaluating the respective Finsleroid--case curvature tensor and required…

数学物理 · 物理学 2007-07-24 G. S. Asanov

A geodesic circle in Finsler geometry is a natural extension of that in a Euclidean space. In this paper, we apply Lie derivatives and the Cartan $Y$-connection to study geodesic circles and (infinitesimal) concircular transformations on a…

微分几何 · 数学 2021-07-20 Zhongmin Shen , Guojun Yang

This article derives closed-form parametric formulas for the Minkowski sums of convex bodies in d-dimensional Euclidean space with boundaries that are smooth and have all positive sectional curvatures at every point. Under these conditions,…

度量几何 · 数学 2021-11-04 Sipu Ruan , Gregory S. Chirikjian

The Finslerian post-Lorentzian kinematic transformations can explicitly be obtained under uni-directional breakdown of spatial isotropy, provided that the requirement that the relativistic unit hypersurface (indicatrix or mass shell) be a…

广义相对论与量子宇宙学 · 物理学 2007-05-23 G. S. Asanov

We explore a natural generalization of systolic geometry to Finsler metrics and optical hypersurfaces with special emphasis on its relation to the Mahler conjecture and the geometry of numbers. In particular, we show that if an optical…

微分几何 · 数学 2020-10-16 Juan-Carlos Alvarez Paiva , Florent Balacheff , Kroum Tzanev

A method to generalize results from Riemannian Geometry to Finsler geometry is presented. We use the method to generalize several results that involve only metric conditions. Between them we show that the topology induced by the Finsler…

微分几何 · 数学 2010-09-23 Ricardo Gallego Torrome

Since the end of the 19th century, and after the works of F. Klein and H. Poincar\'e, it is well known that models of elliptic geometry and hyperbolic geometry can be given using projective geometry, and that Euclidean geometry can be seen…

微分几何 · 数学 2019-05-27 François Fillastre , Andrea Seppi

The Finsleroid-Finsler space is constructed over an underlying Riemannian space by the help of a scalar $g(x)$ and an input 1-form $b$ of unit length. Explicit form of the entailed tensors, as well as the respective spray coefficients, is…

微分几何 · 数学 2007-10-23 G. S. Asanov

In this paper, we introduce an asymmetric metric on the space of marked Euclidean triangles, and we prove several properties of this metric, including two equivalent definitions of this metric, one of them comparing ratios of functions of…

几何拓扑 · 数学 2025-04-25 Ismail Saglam , Ken'Ichi Ohshika , Athanase Papadopoulos

The class of the two-axes pseudo-Finslerian metrics which is specified by the condition of the angle-separation in the involved characteristic functions is proposed and studied. The complete Total Set of algebraic and differential equations…

微分几何 · 数学 2017-09-11 G. S. Asanov

Minkowski's Theorem asserts that every centered measure on the sphere which is not concentrated on a great subsphere is the surface area measure of some convex body, and, moreover, the surface area measure determines a convex body uniquely.…

经典分析与常微分方程 · 数学 2017-04-18 Galyna V. Livshyts

We use the intrinsic area to define a distance on the space of homothety classes of convex bodies in the $n$-dimensional Euclidean space, which makes it isometric to a convex subset of the infinite dimensional hyperbolic space. The ambient…

微分几何 · 数学 2021-09-02 Clément Debin , François Fillastre

In analogy with the study of Pollicott-Ruelle resonances on negatively curved manifolds, we define anisotropic Sobolev spaces that are well-adapted to the analysis of the geodesic vector field associated with any translation invariant…

偏微分方程分析 · 数学 2023-11-07 Nguyen Viet Dang , Matthieu Léautaud , Gabriel Rivière

Finsleroid-Finsler metrics form an important class of singular (y-local) Finsler metrics. They were introduced by G. S. Asanov [2] in 2006. As the special case of the general construction Asanov produced singular (y - local) examples of…

微分几何 · 数学 2016-02-01 Csaba Vincze

An $n$-dimensional ($n\geq 2$) simply connected, compact without boundary Finsler space of positive constant sectional curvature is conformally homeomorphic to an n-sphere in the Euclidean space $\R^{n+1}$.

微分几何 · 数学 2011-12-30 Behroz Bidabad

An extension of Riemmann's geometry into a direction dependent geometric structure is usually described by Finsler's geometry. Historically, this construction was motivated by the well-known Riemann's quartic length element example. Quite…

数学物理 · 物理学 2021-07-06 Yakov Itin

Upon straightforward four--directional extension of the special--relativistic two--dimensional transformations to the four--dimensional case we lead to convenient totally anisotropic kinematic transformations, which prove to reveal many…

数学物理 · 物理学 2007-05-23 G. S. Asanov