3 citations · 3 across the 5 of their papers we have counts for
5 papers
Exploring the CMB in Anisotropic Universes
Robbert W. Scholtens, Marcello Seri, Holger Waalkens +1
In recent years, there have been increasing challenges to the cosmological principle, based on new observations of e.g. supernovae and the cosmic bulk flow. As a result, the cosmol…
Fundamental Cosmic Anisotropy and its Ramifications II: Perturbations in Bianchi spacetimes, and fixed in the Newtonian gauge
Robbert W. Scholtens, Marcello Seri, Holger Waalkens +1
The standard cosmological model is challenged by an ever-growing collection of observations, which invites (and stimulates) inquiry into possible additions and/or alterations. One…
Fundamental Cosmic Anisotropy and its Ramifications I: Killing vector fields and constructing their metric
Robbert W. Scholtens, Marcello Seri, Holger Waalkens +1
On the largest scales, the universe appears to be almost homogeneous and isotropic, adhering to the cosmological principle. In contrast, on smaller scales inhomogeneities and aniso…
Bertranďs Theorem and the Double Copy of Relativistic Field Theories
Dijs de Neeling, Diederik Roest, Marcello Seri +1
Which relativistic field theories give rise to Kepler dynamics in the two-body problem? We consider a class of Hamiltonians that is the unique relativistic extension of the Kepler…
Maslov Indices and Monodromy
HR Dullin, JM Robbins, H Waalkens +2
We prove that for a Hamiltonian system on a cotangent bundle that is Liouville-integrable and has monodromy the vector of Maslov indices is an eigenvector of the monodromy matrix w…