2 papers
gr-qc2026
Viaggiu holographic dark energy in light of DESI DR2
Amlan K. Halder, Andronikos Paliathanasis, Stefano Viaggiu +2
We test the cosmological viability of the Viaggiu holographic dark energy (VHDE) model by using late-time observational data. In particular, we place constraints on the free parame…
gr-qc2025
Evolution of primordial black holes in an adiabatic FLRW universe with gravitational particle creation
Subhajit Saha, Abdulla Al Mamon, Somnath Saha
We study the evolution of primordial black holes (PBHs) in an adiabatic FLRW universe with dissipation due to bulk viscosity which is considered to be in the form of gravitational…