On general $(\alpha ,\beta )$-metrics with isotropic Berwald curvature

Abstract

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 under certain condition.