61 citations · 358 across the 21 of their papers we have counts for
4 papers · 1 filter
The Horizon of the McVittie Black Hole: On the Role of the Cosmic Fluid Modeling
Daniele Gregoris, Yen Chin Ong, Bin Wang
In this paper, we investigate the existence and time evolution of the cosmological and event horizons in a McVittie universe whose expansion is driven by the Redlich-Kwong, (Modifi…
Phase space analysis and singularity classification for linearly interacting dark energy models
Muhsin Aljaf, Daniele Gregoris, Martiros Khurshudyan
In this paper, applying the Hartman-Grobman theorem we carry out a qualitative late-time analysis of some unified dark energy-matter Friedmann cosmological models, where the two in…
Holographic Principle and the Second Law in Stephani Cosmology Revisited
Daniele Gregoris, Yen Chin Ong, Bin Wang
We show in a model-independent way that the inhomogeneous cosmological class II Stephani model fulfills both the the cosmological holographic principle, and that the entropy is inc…
Curvature Invariants and Lower Dimensional Black Hole Horizons
Daniele Gregoris, Yen Chin Ong, Bin Wang
It is known that the event horizon of a black hole can often be identified from the zeroes of some curvature invariants. The situation in lower dimensions has not been thoroughly c…