78 citations · 139 across the 7 of their papers we have counts for
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Some Cosmological Solutions of a New Nonlocal Gravity Model
I. Dimitrijevic, B. Dragovich, A. S. Koshelev +2
In this paper, we investigate a nonlocal modification of general relativity (GR) with action $S = \frac{1}{16πG} \int [ R- 2Λ+ (R-4Λ) \, \mathcal{F}(\Box) \, (R-4Λ) ] \, \sqrt{-g}\…
Cosmological Solutions of a Nonlocal Square Root Gravity
I. Dimitrijevic, B. Dragovich, A. S. Koshelev +2
In this paper we consider modification of general relativity extending by nonlocal term of the form where $\mathcal{F}(\…
Towards nonsingular rotating compact object in ghost-free infinite derivative gravity
Luca Buoninfante, Alan S. Cornell, Gerhard Harmsen +4
The vacuum solution of Einstein's theory of general relativity provides a rotating metric with a ring singularity, which is covered by the inner and outer horizons, and an ergo reg…
Conformally-flat, non-singular static metric in infinite derivative gravity
Luca Buoninfante, Alexey S. Koshelev, Gaetano Lambiase +2
In Einstein's theory of general relativity the vacuum solution yields a blackhole with a curvature singularity, where there exists a point-like source with a Dirac delta distributi…
Towards resolution of anisotropic cosmological singularity in infinite derivative gravity
Alexey S. Koshelev, João Marto, Anupam Mazumdar
In this paper, we will show that the equations of motion of the quadratic in curvature, ghost free, infinite derivative theory of gravity will not permit an anisotropic collapse of…
Schwarzschild -singularity is not permissible in ghost free quadratic curvature infinite derivative gravity
Alexey S. Koshelev, João Marto, Anupam Mazumdar
In this paper we will study the complete equations of motion for a ghost free quadratic curvature infinite derivative gravity. We will argue that within the scale of non-locality,…