539 citations · 5.6k across the 116 of their papers we have counts for
119 papers
Homology reveals significant anisotropy in the cosmic microwave background
Pratyush Pranav, Thomas Buchert
We test the tenet of statistical isotropy of the standard cosmological model via a homology analysis of the cosmic microwave background temperature maps. Examining small sectors of…
Direct correspondence between Newtonian gravitation and general relativity
Thomas Buchert
We present a strategy to obtain equations of general relativity for an irrotational dust continuum within a flow-orthogonal foliation of spacetime from the equations of Newtonian g…
Nonperturbative collapse models for collisionless self-gravitating flows
Niels Fardeau, Thomas Buchert, Fosca Al Roumi +1
Structure formation in the Universe has been well-studied within the Eulerian and Lagrangian perturbation theories, where the latter performs substantially better in comparison wit…
Beyond relativistic Lagrangian perturbation theory. I. An exact-solution controlled model for structure formation
Ismael Delgado Gaspar, Thomas Buchert, Jan J. Ostrowski
We develop a new nonlinear method to model structure formation in general relativity from a generalization of the relativistic Lagrangian perturbation schemes, controlled by Szeker…
On general-relativistic Lagrangian perturbation theory and its non-perturbative generalization
Thomas Buchert, Ismael Delgado Gaspar, Jan J. Ostrowski
The Newtonian Lagrangian perturbation theory is a widely used framework to study structure formation in cosmology in the nonlinear regime. We review a general-relativistic formulat…
Cosmology Intertwined: A Review of the Particle Physics, Astrophysics, and Cosmology Associated with the Cosmological Tensions and Anomalies
Elcio Abdalla, Guillermo Franco Abellán, Amin Aboubrahim +200
In this paper we will list a few important goals that need to be addressed in the next decade, also taking into account the current discordances between the different cosmological…