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gr-qc2025
Gravitational collapse and singularity avoidance of a homogeneous dust fluid on a brane with timelike extra dimension
Rikpratik Sengupta, Chiranjeeb Singha
We investigate the gravitational collapse of a homogeneous dust cloud in the Shtanov Sahni braneworld model, which incorporates an extra timelike dimension. The interior of the col…
gr-qc2025
Co-existence of alternative Generalized Chaplygin Gas and other Dark Energies in the Framework of Fractal Universe
Mahasweta Biswas, Rikpratik Sengupta, Ujjal Debnath
We have explored the possibility of the co-existence of two forms of dark energy in the form of an alternative Generalized Chaplygin Gas (GCG) along with a scalar field of field th…