activity
20002025
most citedTheorems on gravitational time delay and related issues

266 citations · 1.2k across the 40 of their papers we have counts for

collaborators

40 papers

gr-qc2025★ 1 cited

Geodesic completeness, curvature singularities and infinite tidal forces

Xiaotian Zhang, Sijie Gao

We report some new findings regarding the subtle relations among geodesic completeness, curvature singularities and tidal forces. It is well known that any particle may be torn up…

gr-qc2023

Geometric Inequality for Axisymmetric Black Holes With Angular Momentum

Xuefeng Feng, Ruodi Yan, Sijie Gao +2

In an effort to understand the Penrose inequality for black holes with angular momentum, an axisymmetric, vacuum, asymptotically Euclidean initial data set subject to certain quasi…

gr-qc2023

General Proof of the Tolman law

Minghao Xia, Sijie Gao

Tolman proposed that the proper temper of a static self-gravitating fluid in thermodynamic equilibrium satisfies the relation , where is the redshift factor of…

gr-qc2023★ 6 cited

General mass formulas for charged Kerr-AdS black holes

Yunjiao Gao, Zhenbo Di, Sijie Gao

It is well-known that the mass of a non-asymptotically flat spacetime cannot be uniquely defined. Some mass formulas for the Kerr-AdS black hole have been found and used in studyin…

gr-qc2022★ 8 cited

Testing the weak cosmic censorship conjecture for extremal magnetized Kerr-Newman black holes

Yunjiao Gao, Sijie Gao

We test the weak cosmic censorship conjecture for magnetized Kerr-Newman spacetime via the method of injecting a test particle. Hence, we need to know how the black hole's paramete…

gr-qc2021★ 44 cited

Light rings and long-lived modes in quasi-black hole spacetimes

Minyong Guo, Zhen Zhong, Jinguang Wang +1

It has been argued that ultracompact objects, which possess light rings but no horizons, may be unstable against gravitational perturbations. To test this conjecture, we revisit th…