On a class of Finsler metrics with isotropic Berwald curvature

On a class of Finsler metrics with isotropic Berwald curvature
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DOI:
10.4134/bkms.b150784
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发表时间:
2017-03
影响因子:
0.5
通讯作者:
Hongmei Zhu
Hongmei Zhu
中科院分区:
数学4区
文献类型:
--
作者:
Hongmei Zhu

文献摘要

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在本文中,我们研究了一类称为一般 (α, β) 度量的 Finsler 度量,它由黎曼度量 α 和 1form β 定义。我们证明,每个具有各向同性 Berwald 曲率的通用 (α, β) 度量要么是 Berwald 度量,要么是 Randers 度量。此外,还明确构造了许多新的各向同性 Berwald 通用 (α, β) 度量。
In this paper, we study a class of Finsler metrics called general (α, β)-metrics, which are defined by a Riemannian metric α and a 1form β. We show that every general (α, β)-metric with isotropic Berwald curvature is either a Berwald metric or a Randers metric. Moreover, a lot of new isotropic Berwald general (α, β)-metrics are constructed explicitly.