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Douglas metrics are metrics with vanishing Douglas curvature which is an important projective invariant in Finsler geometry. To find more Douglas metrics, in this paper we consider a class of Finsler metrics called general…

Differential Geometry · Mathematics 2016-06-28 Xiaoming Wang , Benling Li

In this paper, the Douglas curvature of (\alpha,\beta)-metrics, a special class of Finsler metrics defined by a Riemannian metric \alpha and a 1-form \beta, is studied. These metrics with vanishing Douglas curvature in dimension n\geq3 are…

Differential Geometry · Mathematics 2016-09-15 Changtao Yu

In this paper, we investigate the change of Finslr metrics $$L(x,y) \to\bar{L}(x,y) = f(e^{\sigma(x)}L(x,y),\beta(x,y)),$$ which we refer to as a generalized $\beta$-conformal change. Under this change, we study some special Finsler spaces,…

Differential Geometry · Mathematics 2015-03-17 Nabil L. Youssef , S. H. Abed , S. G. Elgendi

In this paper we construct a new class of harmonic and asymptotically harmonic Finsler manifolds of $({\alpha},\beta)$-type. This class is defined by a Riemannian metric ${\alpha}$ and a special 1-form $\beta$.

Differential Geometry · Mathematics 2022-06-28 Ebtsam H. Taha

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

We study the necessary and sufficient conditions for a Finsler surface with $(\alpha,\beta)$-metrics to be with reversible geodesics.

Differential Geometry · Mathematics 2012-03-08 Ioana M. Masca , Sorin V. Sabau , Hideo Shimada

In this paper, we study one of the open problems in Finsler geometry which presented by Matsumoto-Shimada about the existence of P-reducible metric which is not C-reducible. For this aim, we study a class of Finsler metrics called…

Differential Geometry · Mathematics 2015-10-28 A. Tayebi , H. Sadeghi

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

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, 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 the present paper, the notion of $\mathbb{R}$-complex Finsler space with Infinite Series ($\alpha, \beta$)- metric $\dfrac{\beta^2}{\beta - \alpha}$ is defined. The Fundamental metric fields $g_{ij}$, $g_{i\bar{j}}$, their determinants…

Differential Geometry · Mathematics 2018-03-06 Gauree Shanker , Ruchi Kaushik Sharma

In this paper, we find a condition on $(\alpha, \beta)$-metrics under which the notions of isotropic S-curvature, weakly isotropic S-curvature and isotropic mean Berwald curvature are equivalent.

Differential Geometry · Mathematics 2014-12-25 Behzad Najafi , Akbar Tayebi

In this paper, we consider Randers change of some special $ (\alpha, \beta)- $ metrics. First we find the fundamental metric tensor and Cartan tensor of these Randers changed $ (\alpha, \beta)- $metrics. Next, we establish a general formula…

Differential Geometry · Mathematics 2017-12-22 Gauree Shanker , Sarita Rani , Kirandeep Kaur

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, we introduce and investigate a general transformation or change of Finsler metrics, which is referred to as a generalized $\beta$-conformal change: $$L(x,y) \longrightarrow\overline{L}(x,y) =…

Differential Geometry · Mathematics 2015-05-13 Nabil L. Youssef , S. H. Abed , S. G. Elgendi

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

In this paper, we study general $(\alpha,\beta)$-metrics which $\alpha$ is a Riemannian metric and $\beta$ is an one-form. We have proven that every weak Landsberg general $(\alpha,\beta)$-metric is a Berwald metric, where $\beta$ is a…

Metric Geometry · Mathematics 2017-06-14 A. Ala , A. Behzadi , M. Rafiei-Rad

The $\Gamma$-limit for a sequence of length functionals associated with a one parameter family of Riemannian manifolds is computed analytically. The Riemannian manifold is of `two-phase' type, that is, the metric coefficient takes values in…

Analysis of PDEs · Mathematics 2014-01-10 Hartmut Schwetlick , Daniel C. Sutton , Johannes Zimmer

We study a special class of Finsler metrics which we refer to as Almost Rational Finsler metrics (shortly, AR-Finsler metrics). We give necessary and sufficient conditions for an AR-Finsler manifold $(M,F)$ to be Riemannian. The rationality…

Differential Geometry · Mathematics 2024-07-02 Ebtsam H. Taha , Bankteshwar Tiwari

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