3 papers
gr-qc2026
On uniqueness of non-vacuum stationary axisymmetric type D spacetime
Hiroaki Nakajima, Ya Guo, Wenbin Lin
We study a family of the non-vacuum stationary axisymmetric type D metrics, where the two principal null directions are geodesic and shearfree. It is demonstrated that the conforma…
gr-qc2024
Teukolsky-like equations with various spins in a deformed Kerr spacetime
Hiroaki Nakajima, Ya Guo, Wenbin Lin
We study the wave equations with the various spins on the background of the Kerr metric deformed by a function of the radial coordinate, on which background we have studied the gra…
gr-qc2023
Teukolsky-like equations with various spins in spherically symmetric spacetime
Ya Guo, Hiroaki Nakajima, Wenbin Lin
We study the wave equations with various spins on the background of the general spherically symmetric spacetime. We obtain the unified expression of the Teukolsky-like master equat…