On general (α,β)-metrics with isotropic S-curvature

The S-curvature is an important non-Riemannian quantity in Finsler geometry. 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 1-form β. We characterize all of general (α,β)-metrics with isotropic S-curvature.