33 citations · 42 across the 3 of their papers we have counts for
3 papers
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…
On the maximum volume of collapsing structures
Jan J. Ostrowski, Ismael Delgado Gaspar
In many cosmological models, including the CDM concordance model, there exist a theoretical upper bounds on the size of collapsing structures. The most common formulations in th…
Evidence for an environment-dependent shift in the baryon acoustic oscillation peak
Boudewijn F. Roukema, Thomas Buchert, Jan J. Ostrowski +1
The Friedmann-Lemaitre-Robertson-Walker (FLRW) metric assumes comoving spatial rigidity of metrical properties. The curvature term in comoving coordinates is environment-independen…