326 citations · 2.3k across the 93 of their papers we have counts for
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Energy conditions in f(R) gravity and Brans-Dicke theories
K. Atazadeh, A. Khaleghi, H. R. Sepangi +1
The equivalence between f(R) gravity and scalar-tensor theories is invoked to study the null, strong, weak and dominant energy conditions in Brans-Dicke theory. We consider the val…
Role of Chaplygin gas as geometrical dark energy in anisotropic brane gravity
Malihe Heydari-Fard, Hamid R. Sepangi
We consider an anisotropic brane-world model with Bianchi type I and V geometry, without mirror symmetry or any form of junction conditions. The generalized Chaplygin gas, which in…
Can local bulk effects explain the galactic dark matter?
Malihe Heydari-Fard, Hamid R. Sepangi
We obtain the virial theorem within the context of a brane-world model without mirror symmetry or any form of junction condition. Taking a constant curvature bulk (neglecting non-l…
Correspondence between modified gravity and 5D Ricci-flat cosmologies
K. Atazadeh, F. Darabi, H. R. Sepangi
We study the correspondence between two theoretical frameworks for describing dark energy, gravity and higher-dimensional Space-Time-Matter (STM) or induced-matter theory. W…
Thermodynamics of noncommutative de Sitter spacetime
B. Vakili, N. Khosravi, H. R. Sepangi
We study the effects of noncommutativity of spacetime geometry on the thermodynamical properties of the de Sitter horizon. We show that noncommutativity results in modifications in…
A fundamental length as a candidate for dark energy: a DSR inspired FRW spacetime
N. Khosravi, H. R. Sepangi
We show that the existence of a fundamental length, introduced in Deformed Special Relativity (DSR) inspired minisuper (phase-) space, causes the behavior of the scale factor of th…
Accelerating universe in brane gravity
K. Atazadeh, M. Farhoudi, H. R. Sepangi
We study a 5-dimensional brane gravity within the framework of scalar-tensor type theories. We show that such a model predicts, for a certain choice of …