4 papers
Testing CDM with ANN-Reconstructed Expansion History from Cosmic Chronometers
Yuki Hashimoto, Kazuharu Bamba, Sanjay Mandal
In modern cosmology, the rapid growth of high-precision observational data, along with significant theoretical advances, has intensified the challenge of identifying a robust, mode…
Energy conditions of bouncing solutions in quadratic curvature gravity coupled with a scalar field
Yuki Hashimoto, Kazuharu Bamba, Sanjay Mandal
We examine the validity of classical energy conditions in nonsingular bouncing cosmological solutions arising in quadratic curvature gravity minimally coupled to a scalar field. Fo…
Orthogonal Splitting in Degenerate Higher-order Scalar-tensor Theories
Z. Yousaf, N. Z. Bhatti, H. Asad +2
We explore a comprehensive analysis of the formalism governing the gravitational field equations in degenerate higher-order scalar-tensor theories. The propagation of these theorie…
Imprints of dark matter on the structural properties of minimally deformed compact stars
Z. Yousaf, Kazuharu Bamba, Bander Almutairi +2
In this manuscript, we investigate the possibility of constructing anisotropic dark matter compact stars motivated by the Einasto density profile. This work develops analytical sol…