42 citations · 158 across the 16 of their papers we have counts for
16 papers
From bending of light to positive mass: a non-PDE perspective
Xiaokai He, Xiaoning Wu, Naqing Xie
Penrose et al. investigated the physical incoherence of the spacetime with negative mass via the bending of light. Precise estimates of time-delay of null geodesics were needed and…
Critical phenomena in gravitational collapse of Husain-Martinez-Nunez scalar field
Xiaobao Wang, Xiaoning Wu, Sijie Gao
We construct analytical models to study the critical phenomena in gravitational collapse of the Husain-Martinez-Nunez massless scalar field. We first use the cut-and-paste techniqu…
More on gravitational memory
Pujian Mao, Xiaoning Wu
Two novel results for the gravitational memory effect are presented in this paper. We first extend the formula for the memory effect to solutions with arbitrary two surface boundar…
Energy-momentum in general relativity
Xiaoning Wu, Xiao Zhang
We briefly review of the definitions of the total energy, the total linear momentum and the angular momentum of gravitational field when the cosmological constant is zero. In parti…
On Newman-Penrose constants of stationary electrovacuum spacetimes
Xiangdong Zhang, Xiaoning Wu, Sijie Gao
A theorem related to the Newman-Penrose constants is proven. The theorem states that all the Newman-Penrose constants of asymptotically flat, stationary, asymptotically algebraical…
On Uniqueness of Kerr Space-time near null infinity
Xiaoning Wu, Shan Bai
We re-express the Kerr metric in standard Bondi-Saches' coordinate near null infinity . Using the uniqueness result of characteristic initial value problem, we prove th…