26 citations · 80 across the 16 of their papers we have counts for
8 papers · 1 filter
Dynamics of stringy congruence in early universe
Yong Seung Cho, Soon-Tae Hong
We studied the singularity of the geodesic surface congruence for timelike and null strings using the expansion of the universe in the string theory. We had Raychaudhuri type equat…
Singularities in geodesic surface congruence
Yong Seung Cho, Soon-Tae Hong
In the stringy cosmology, we investigate singularities in geodesic surface congruences for the time-like and null strings to yield the Raychaudhuri type equations possessing correc…
Warped products and black holes
Soon-Tae Hong
We apply the warped product spacetime scheme to the Banados-Teitelboim-Zanelli black holes and the Reissner-Nordström-anti-de Sitter black hole to investigate their interior soluti…
Thermodynamics of (1+1) dilatonic black holes in global flat embedding scheme
Soon-Tae Hong
We study thermodynamics of (1+1) dimensional dilatonic black holes in global embedding Minkowski space scheme. Exploiting geometrical entropy correction we construct consistent ent…
Hydrodynamics and global structure of rotating Schwarzschild black holes
Soon-Tae Hong, Sung-Won Kim
Exploiting a rotating Schwarzschild black hole metric, we study hydrodynamic properties of perfect fluid whirling inward toward the black holes along a conical surface. On the equa…
Warped products and FRW cosmology
Soon-Tae Hong
We study the Friedmann-Robertson-Walker cosmological model to investigate non-smooth curvatures associated with multiple discontinuities involved in the evolution of the universe,…