177 citations · 2.5k across the 71 of their papers we have counts for
71 papers
Energy conditions for non-timelike thin shells
Hideki Maeda
We study energy conditions for non-timelike thin shells in arbitrary dimensions. It is shown that the induced energy-momentum tensor on a shell is of the Ha…
Vacuum-dual static perfect fluid obeying in dimensions
Hideki Maeda
We obtain the general -dimensional static solution with an -dimensional Einstein base manifold for a perfect fluid obeying a linear equation of state $p=-(n-3)ρ/(n…
Conformally Schwarzschild cosmological black holes
Takuma Sato, Hideki Maeda, Tomohiro Harada
We thoroughly investigate conformally Schwarzschild spacetimes in different coordinate systems to seek for physically reasonable models of a cosmological black hole. We assume that…
Criteria for energy conditions
Hideki Maeda, Tomohiro Harada
In model building studies, it is important to check the energy conditions for the corresponding energy-momentum tensor determined by the gravitational field equations in order to s…
Simple traversable wormholes violating energy conditions only near the Planck scale
Hideki Maeda
We present a static and axisymmetric traversable wormhole spacetime with vanishing Arnowitt-Deser-Misner (ADM) mass which is characterized by a length parameter and a deformati…
Quest for realistic non-singular black-hole geometries: Regular-center type
Hideki Maeda
We propose seven criteria to single out physically reasonable non-singular black-hole models and adopt them to four different spherically symmetric models with a regular center and…