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In this paper, studying the inverse problem, we establish a curvature compatibility condition on a spherically symmetric Finsler metric. As an application, we characterize the spherically symmetric metrics of scalar curvature. We construct…

Differential Geometry · Mathematics 2024-07-08 S. G. Elgendi

This work generalizes the results of an earlier paper by the second author, from Randers metrics to $(\alpha,\beta)$-metrics. Let $F$ be an $(\alpha,\beta)$-metric which is defined by a left invariant vector field and a left invariant…

Differential Geometry · Mathematics 2024-07-23 Masumeh Nejadahmad , Hamid Reza Salimi Moghaddam

In this paper, we give the flag curvature formula of general $(\alpha,\beta)$-metrics of Berwald type. We study conformally related $(\alpha,\beta)$-metrics, especially general $(\alpha,\beta)$-metrics that are conformally related to…

General Mathematics · Mathematics 2024-08-20 Azar Fatahi , Masoumeh Hosseini , Hamid Reza Salimi Moghaddam

In this paper, we study a class of Finsler metrics called general $(\alpha,\beta)$-metrics, which are defined by a Riemannian metric $\alpha$ and a $1$-form $\beta$. We find an equation which is necessary and sufficient condition for such…

Differential Geometry · Mathematics 2015-06-01 Hongmei Zhu

The notion of a Douglas space of second kind of a Finsler space with $(\alpha, \beta)$-metric was introduced by I. Y. Lee [9]. Since then, so many geometers have studied this topic e. g., [14]. In this paper, we prove that a Douglas space…

Differential Geometry · Mathematics 2018-06-22 Gauree Shanker , Sruthy Asha Baby

The emergence of generalized square metrics in Finsler geometry can be attributed to various classification concerning ({\alpha}, \beta})-metrics. They have excellent geometric properties in Finsler geometry. Within the scope of this…

Differential Geometry · Mathematics 2023-10-24 Sonia Rani , Vinod Kumar , Mohammad Rafee

In this paper two metric properties on geodesic length spaces are introduced by means of the metric projection, studying their validity on Alexandrov and Busemann NPC spaces. In particular, we prove that both properties characterize the…

Differential Geometry · Mathematics 2016-02-15 Alexandru Kristály , Dušan Repovš

This paper is a continuation of our investigation of the anisotropic conformal change of a conic pseudo-Finsler surface $(M,F)$, namely, the change $\overline{F}(x,y)=e^{\phi(x,y)}F(x,y)$ \cite{first paper}. We obtain the relationship…

Differential Geometry · Mathematics 2025-03-12 Nabil L. Youssef , S. G. Elgendi , A. A. Kotb , Ebtsam H. Taha

In this paper, we study a class of Finsler metrics called general (\alpha,\beta)-metrics, which are defined by a Riemannian metric and an 1-form. We construct some general (\alpha,\beta)-metrics with constant Ricci curvature.

Differential Geometry · Mathematics 2013-07-02 Zhongmin Shen , Changtao Yu

Square metrics $F=\frac{(\alpha+\beta)^2}{\alpha}$ are a special class of Finsler metrics. It is the rate kind of metric category to be of excellent geometrical properties. In this paper, we discuss the so-called singular square metrics…

Differential Geometry · Mathematics 2016-11-02 Changtao Yu , Hongmei Zhu

An $(\alpha,\beta)$-metric is defined by a Riemannian metric $\alpha$ and $1$-form $\beta$. In this paper, we study a known class of two-dimensional $(\alpha,\beta)$-metrics of vanishing S-curvature. We determine the local structure of…

Differential Geometry · Mathematics 2014-06-12 Guojun Yang

A trivial projective change of a Finsler metric $F$ is the Finsler metric $F + df$. I explain when it is possible to make a given Finsler metric both forward and backward complete by a trivial projective change. The problem actually came…

Differential Geometry · Mathematics 2015-10-02 Vladimir S. Matveev

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

In this paper, first we prove the existence of invariant vector field on a homogeneous Finsler space with infinite series $(\alpha, \beta)$-metric and exponential metric. Next, we deduce an explicit formula for the the $S$-curvature of…

Differential Geometry · Mathematics 2017-12-29 Gauree Shanker , Kirandeep Kaur

In this paper, I will show how to use $\beta$-deformations to deal with dual flatness of $(\alpha,\beta)$-metrics. It is a natural continuation of the research on dually flat Randers metrics(see arxiv:1209.1150). $\beta$-deformations is a…

Differential Geometry · Mathematics 2013-05-17 Changtao Yu

For Finsler spaces (M,F) endowed with m-th root metrics, we provide necessary and sufficient conditions in which they are projectively flat, or projectively related to Berwald/Riemann spaces. We also give a specific characterization for…

Differential Geometry · Mathematics 2008-10-22 Nicoleta Brinzei

In this paper, we find a condition under which a Finsler space with Kropina change of mth-root metric is projectively related to a mth-root metric and also we find a condition under which this Kropina transformed mth-root metric is locally…

Differential Geometry · Mathematics 2017-12-27 Gauree Shanker , Vijeta Singh

In this paper, we study a class of two-dimensional Finsler metrics defined by a Riemannian metric $\alpha$ and a 1-form $\beta$. We characterize those metrics which are Douglasian or locally projectively flat by some equations. In…

Differential Geometry · Mathematics 2013-02-14 Guojun Yang

In this paper, the geometric meaning of (alpha,beta)-norms is made clear. On this basis, we introduce a new class of Finsler metrics called general (alpha,beta)-metrics, which are defined by a Riemannian metric and an 1-form. These metrics…

Differential Geometry · Mathematics 2012-09-06 Changtao Yu , Hongmei Zhu

In this paper, a characteristic condition of the projectively flat Kropina metric is given. By it, we prove that a Kropina metric $F=\alpha^2/\beta$ with constant curvature $K$ and $\|\beta\|_{\alpha}=1$ is projectively flat if and only if…

Differential Geometry · Mathematics 2013-04-10 Xiaoling Zhang , Yibing Shen