1 citations · 2 across the 3 of their papers we have counts for
6 papers
Tilt in quadratic gravity
Waleska P. F. de Medeiros, Matheus J. Lazo, Daniel Müller +1
In this work, tilted source solutions in both Einstein-Hilbert General Relativity (GR) and Quadratic Gravity (QG) for the anisotropic Bianchi V model are addressed. Since the excel…
Initial conditions for Starobinsky Inflation with a positive spatial curvature
Daniel Müller, Alexey Toporensky
We have found numerically initial conditions in the plane leading to a successful Starobinsky inflation in gravity for a isotropic metrics with positive spatial cu…
Probing time orientability of spacetime
N. A. Lemos, D. Müller, M. J. Reboucas
In general relativity, cosmology and quantum field theory, spacetime is assumed to be an orientable manifold endowed with a Lorentz metric that makes it spatially and temporally or…
Probing spatial orientability of Friedmann--Robertson--Walker spatially flat spacetime
N. A. Lemos, D. Müller, M. J. Reboucas
One important global topological property of a spacetime manifold is orientability. It is widely believed that spatial orientability can only be tested by global journeys around th…
Generality of Starobinsky and Higgs inflation in the Jordan frame
Swagat S. Mishra, Daniel Müller, Aleksey V. Toporensky
We revisit the problem of generality of Starobinsky and Higgs inflation. The known results obtained in the Einstein frame are generalized for the case of an arbitrary initial energ…
Anisotropic cosmological solutions in gravity
Daniel Müller, Angelo Ricciardone, Alexei A. Starobinsky +1
In this paper we investigate the past evolution of an anisotropic Bianchi I universe in gravity. Using the dynamical system approach we show that there exists a new two-par…