540 citations · 6.4k across the 303 of their papers we have counts for
307 papers
Anisotropic Cosmology with Inhomogeneous and Nonlinear -Models
N. Dimakis, A. Giacomini, G. Leon +2
We investigate the cosmological dynamics of the nonlinear -model in a locally rotational symmetric Bianchi V background geometry. We employ the and the $SL(2,\mathbb{R})…
Nontrivial Symmetries in -essence Cosmology
Andrés Lueiza-Colipí, Nikolaos Dimakis, Andronikos Paliathanasis
In the context of a spatially flat FLRW background, we perform a symmetry classification of -essence models with Lagrangian densities of the form . The kinetic…
Solutions for neutron stars in General Relativity from a complexity structure scalar boundary condition
Robert S. Bogadi, Megandhren Govender, Genly Leon +1
A new condition involving the complexity factor, a structure scalar arising from the orthogonal splitting of the Riemann tensor, is generated at the boundary of a spherically symme…
Inhomogeneous Cosmologies with Bumpy Structure from Superfluid Pionic Vortices and the propagation of electromagnetic field
Fabrizio Canfora, Alex Giacomini, Nikolaos Dimakis +1
In this work we introduce exact cosmological solutions in General Relativity in (3+1) dimensions which take into account both the usual fluid component as well as a superfluid comp…
Early- and late-time constraints on Wald-Gauss-Bonnet topological dark energy and implications for the and tensions
Stylianos A. Tsilioukas, Fotios K. Anagnostopoulos, Spyros Basilakos +2
The persistent and tensions motivate the search for new dark-energy mechanisms capable of modifying the late-time expansion history while preserving the successful earl…
Classical Symmetries and Painleve Analysis for the (1+3) Kudryashov-Sinelshchikov Equation
Amlan K Halder, Rajeswari Seshadri, A Paliathanasis +1
The integrability of the Kudryashov-Sinelshchikov equation in (1+3) dimension is detected using its point symmetries and the Singularity analysis method. The symmetries mostly poin…