3 papers
gr-qc2020
Optical properties of a nonlinear magnetic charged rotating black hole surrounded by quintessence with a cosmological constant
Yuan Chen, He-Xu Zhang, Tian-Chi Ma +1
In this paper,we discuss optical properties of the nonlinear magnetic charged black hole surrounded by quintessence with a non-zero cosmological constant . Setting the state par…
gr-qc2019
Optical properties of a Brane-World black hole as photons couple to the Weyl tensor
He-Xu Zhang, Cong Li, Peng-Zhang He +2
In this article, we have investigated the equations of motion of the photons coupled to Weyl tensor by the geometric optics approximation and the corresponding shadow in a Brane-Wo…
math.CV2018
Local Analysis of Loewner Equation
Henshui Zhang, Michel Zinsmeister
Let be the driving function of a chordal Loewner process. In this paper we find new conditions on which imply that the process is generated by…