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gr-qc2004★ 13 cited
Entropy of gravitationally collapsing matter in FRW universe models
Morad Amarzguioui, Oyvind Gron
We look at a gas of dust and investigate how its entropy evolves with time under a spherically symmetric gravitational collapse. We treat the problem perturbatively and find that t…
gr-qc2002★ 10 cited
The Weyl Curvature Conjecture
Oyvind Gron, Sigbjorn Hervik
In this paper we review Penrose's Weyl curvature conjecture which states that the concept of gravitational entropy and the Weyl tensor is somehow linked, at least in a cosmological…