158 citations · 1.4k across the 42 of their papers we have counts for
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Cosmology under the fractional calculus approach: a possible tension resolution?
Genly Leon, Miguel A. García-Aspeitia, Guillermo Fernandez-Anaya +3
Recently, a new field of study called fractional cosmology has emerged. It uses fractional calculus to modify the standard derivative equations and change the Friedmann equations.…
Cosmology under the fractional calculus approach
Miguel A. García-Aspeitia, Guillermo Fernandez-Anaya, A. Hernández-Almada +2
Fractional cosmology modifies the standard derivative to Caputo's fractional derivative of order , generating changes in General Relativity. Friedmann equations are modified, an…
Cosmic acceleration in unimodular gravity
Miguel A. García-Aspeitia, C. Martínez-Robles, A. Hernández-Almada +2
We study unimodular gravity in the context of cosmology, particularly some interesting consequences that might be able to describe the background cosmology and the late cosmic acce…
Brane with variable tension as a possible solution to the problem of the late cosmic acceleration
Miguel A. Garcia-Aspeitia, A. Hernandez-Almada, Juan Magaña +3
Braneworld models have been proposed as a possible solution to the problem of the accelerated expansion of the Universe. The idea is to dispense the dark energy (DE) and drive the…
Falsifying cosmological models based on a non-linear electrodynamics
Ali Övgün, Genly Leon, Juan Magaña +1
Recently, the nonlinear electrodynamics (NED) has been gaining attention to generate primordial magnetic fields in the Universe and also to resolve singularity problems. Moreover,…
Semi-holographic model including the radiation component
Sergio del Campo, Víctor Cárdenas, Juan Magaña +1
In this letter we study the semi holographic model which corresponds to the radiative version of the model proposed by Zhang et al. (Phys. Lett. B 694 (2010), 177) and revisited by…
Braneworld Model of Dark Matter: Structure Formation
Miguel A. García-Aspeitia, Juan Magaña, Tonatiuh Matos
Following a previous work [Gen. Relativ. Gravit. 43 (2011)], we further study the behavior of a real scalar field in a hidden brane in a configuration of two branes embedded in a f…
Structure Formation with Scalar Field Dark Matter: The Fluid Approach
Abril Suárez, Tonatiuh Matos
The properties of nearby galaxies that can be observed in great detail suggest that a better theory rather than cold dark matter (CDM) would describe in a better way a mechanism by…