English
Related papers

Related papers: On Generalized Douglas-Weyl $(\alpha, \beta)$-Metr…

200 papers

The class of generalized Berwald metrics contains the class of Berwald metrics. In this paper, we characterize two-dimensional generalized Berwald $(\alpha, \beta)$-metrics with vanishing S-curvature. Let $F=\alpha\phi(s)$,…

Differential Geometry · Mathematics 2023-01-04 Akbar Tayebi , Faezeh Eslami

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

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

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

We proof that in dimension two, a Finsler metric is Douglas and generalized Berwald, if and only if it is Berwald or a Randers metric $\alpha + \beta$, where $\beta$ is closed and is of constant length with respect to $\alpha$.

Differential Geometry · Mathematics 2019-10-08 Nina Bartelmeß , Julius Lang

This paper introduces a new quantity in Finsler geometry, called the generalized Berwald projective Weyl ($GB\widetilde{W}$) metric. The $C$-projective invariance of these metrics is demonstrated, and it is shown that they constitute a…

Differential Geometry · Mathematics 2025-11-14 Nasrin Sadeghzadeh

In this paper, we study a new class of Finsler metrics, F=\alpha\phi(b^2,s), s:=\beta/\alpha, defined by a Riemannian metric \alpha and 1-form \beta. It is called general (\alpha, \beta) metric. In this paper, we assume \phi be coefficient…

Differential Geometry · Mathematics 2017-06-28 A. Ala , A. Behzadi , M. Rafiei-Rad

In this paper, we construct a new class of Finsler manifolds called generalized isotropic Berwald manifolds which is an extension of the class of isotropic Berwald manifolds. We prove that every generalized isotropic Berwald manifold is a…

Differential Geometry · Mathematics 2013-02-15 A. Tayebi , E. Peyghan

In this paper, we study a class of Finsler metrics which contains the class of Berwald metrics as a special case. We prove that every Finsler metric in this class is a generalized Douglas-Weyl metric. Then we study isotropic flag curvature…

Differential Geometry · Mathematics 2010-01-21 Akbar Tayebi , Esmaeil Peyghan

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 classify this class of Finsler metrics with isotropic Berwald curvature…

Differential Geometry · Mathematics 2015-06-08 Hongmei Zhu

This paper gives new insights into the class of Generalized Douglas Weyl ($GDW$)-metrics. This projective invariant class of Finsler metrics, contains some well-known Finsler metrics such as Douglas, Weyl and $R$-quadratic metrics. Here,…

Differential Geometry · Mathematics 2025-11-10 Nasrin Sadeghzadeh , Najmeh Sajjadi Moghadam

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

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

In this paper, we study almost regular Landsberg general $(\alpha,\beta)$-metrics in Finsler geometry. The corresponding equivalent equations are given. By solving the equations, we give the classification of Landsberg general…

Differential Geometry · Mathematics 2017-06-05 Shasha Zhou , Benling Li

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

This paper presents a pioneering projective invariant in Finsler geometry, introducing a new class of Finsler metrics that are preserved under projective transformations. The newly formulated weakly generalized Douglas-Weyl $(W-G D W)$…

Differential Geometry · Mathematics 2025-10-06 Nasrin Sadeghzadeh

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 study the Berwald-Weyl curvature which is defined for a spray/Finsler metric with a volume form. We obtain some expressions for the Berwald-Weyl curvature. This quantity is a projective invariant with respect to a fixed…

Differential Geometry · Mathematics 2024-07-11 Zhongmin Shen , Liling Sun

The study of curvature properties of homogeneous Finsler spaces with $(\alpha, \beta)$-metrics is one of the central problems in Riemann-Finsler geometry. In the present paper, the existence of invariant vector fields on homogeneous Finsler…

Differential Geometry · Mathematics 2020-03-18 Gauree Shanker , Sarita Rani

The development of projective invariant Weyl metrics in this paper offers a fresh perspective, as we establish the characteristics of both weakly-Weyl and generalized weakly-Weyl Finsler metrics. We thoroughly examine the connections…

Differential Geometry · Mathematics 2025-11-11 Nasrin Sadeghzadeh , Meshkat Yavari
‹ Prev 1 2 3 10 Next ›