3 papers
gr-qc2026
Gravitational Bound State Perturbations Inside Black Holes and Isospectrality
Hassan Firouzjahi, Kazem Rezazadeh, Masoud Molaei
We study the bound state solutions for the polar perturbations in the interior of the Schwarzschild black hole. It is shown that for a given value of the spherical harmonic index $…
gr-qc2025
Elliptically Polarized Plane Gravitational Waves
Masoud Molaei, Shant Baghram, Bahram Mashhoon
Exact plane gravitational radiation fields are presented within the framework of general relativity and their properties are described. The physics of nonlinear elliptically polari…
gr-qc2025
Local Peculiar Motions in McVittie and LTB Spacetimes
Masoud Molaei, Shant Baghram, Bahram Mashhoon
We consider two inhomogeneous cosmological models, namely, the flat McVittie spacetime and a simple specific LTB spacetime. Relative to the world line of a reference comoving obser…