4 papers · 1 filter
Robust Wada Boundaries and Entropy Scaling in pp-Wave Spacetimes
Pedro Henrique Barboza Rossetto, Vanessa Carvalho de Andrade, Daniel Müller
We study the dynamics of the geodesics of pp-wave spacetimes with polynomial profiles, which are dynamically equivalent to the motion of a classical particle in a two-dimensional h…
Six-dimensional cosmological models with conformal extensions
Daniel Muller, Sergey G. Rubin, Ilya L. Shapiro +1
We consider the background cosmological solutions in the (six-dimensional) model with one time and five space coordinates. The theory of our interest has the action composed b…
Tilt in quadratic gravity II
Waleska P. F. de Medeiros, Daniel Müller, Oliver F. Piattella +2
We investigate a tilted fluid component on a Bianchi V geometry in the theories of General Relativity (GR) and Quadratic Gravity (QG). The main objective of this work is the study…
Static cosmological solutions in quadratic gravity
Daniel Muller, Alexey Toporensky
We consider conditions for existence and stability of a static cosmological solution in quadratic gravity. It appears that such a solution for a Universe filled by only one type of…