3 papers
gr-qc2026
Gravitational Landscapes: black holes with linear equations of state in asymptotically safe gravity
Ramin Hassannejad, Fatimah Shojai, Kazuharu Bamba
We study black holes with linear equation of state within the framework of asymptotically safe gravity. This study extends previous work on gravitational collapse in asymptotically…
gr-qc2025
Mori-Zwanzig formalism for early cosmic inflation
Ramin Hassannejad
The existence of fluctuations at the early stage of the universe provides enough confidence to rely on averaging methods. However, the nonlinearity of general relativity makes this…
gr-qc2025
Gravitational Collapse in Scale-Dependent Gravity
Ramin Hassannejad, Gaetano Lambiase, Fabio Scardigli +1
In this paper we study an Oppenheimer-Snyder (OS)-like gravitational collapse in the general framework of scale-dependent gravity. We explore the collapse in spherically symmetric…