8 citations · 20 across the 12 of their papers we have counts for
13 papers
Geometric Approach to Light Rings in Axially Symmetric Spacetimes
Chenkai Qiao, Ming Li, Donghui Xie +1
Circular photon orbits have become an attractive topic in recent years. They play extremely important roles in black hole shadows, gravitational lensings, quasi-normal modes, and s…
A Schur type lemma for the Mean Berwald curvature in Finsler geometry
Ming Li
In this short paper, we study a symmetric covariant tensor in Finsler geometry, which is called the mean Berwald curvature. We first investigate the geometry of the fibres as the s…
On isotropic Berwald scalar curvature
Ming Li
In this short paper, we establish a closer relation between the Berwald scalar curvature and the -curvature. In fact, we prove that a Finsler metric has isotropic Berwald scalar…
Properties of Berwald scalar curvature
Ming Li, Lihong Zhang
In this short paper, we prove that a Finsler manifold with vanishing Berwald scalar curvature has zero -curvature. As a consequence, Landsberg manifolds with vanishing…
Partially volume expanding diffeomorphisms
Shaobo Gan, Ming Li, Marcelo Viana +1
We call a partially hyperbolic diffeomorphism \emph{partially volume expanding} if the Jacobian restricted to any hyperplane that contains the unstable bundle is larger than…
Semi-conformal structure on certain vertex superalgebras associated to vertex superalgebroids
Ming Li
In this paper, we first give the definiton of a vertex superalgebroid. Then we construct a family of vertex superalgebras associated to vertex superalgebroids. As a main result, we…