J
John Wainwright
Researcher at University of Waterloo
Publications - 81
Citations - 4134
John Wainwright is an academic researcher from University of Waterloo. The author has contributed to research in topics: Curvature & Perfect fluid. The author has an hindex of 33, co-authored 81 publications receiving 3990 citations. Previous affiliations of John Wainwright include California State University, Fullerton.
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Dynamical systems in cosmology
TL;DR: In this article, the geometry of cosmological models of Bianchi cosmologies has been studied and the analysis of the Bianchi Cosmologies of non-tilted class A models has been carried out.
Journal ArticleDOI
A dynamical systems approach to Bianchi cosmologies: Orthogonal models of class A
C. G. Hewitt,John Wainwright +1 more
TL;DR: In this paper, the Einstein field equations for the orthogonal class B Bianchi cosmologies are described as an autonomous DE in terms of expansion-normalized dimensionless variables.
Journal ArticleDOI
Past attractor in inhomogeneous cosmology
TL;DR: In this article, a general framework for analyzing spatially inhomogeneous cosmological dynamics is presented, which employs Hubble-normalized scale-invariant variables which are defined within the orthonormal frame formalism, and leads to the formulation of Einstein's field equations with a perfect fluid matter source as an autonomous system of evolution equations and constraints.
Journal ArticleDOI
Spatially homogeneous and inhomogeneous cosmologies with equation of statep=μ
TL;DR: In this paper, an algorithm for generating solutions of the Einstein field equations which have an irrotational perfect fluid, with equation of statep=μ, as source, and which admit a two-parameter Abelian group of local isometries is presented.