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9 papers · 1 filter
New sum rules relating the 1-body momentum distribution of the homogeneous electron gas to the Overhauser 2-body wave functions of its pair density
P. Ziesche, K. Pernal, F. Tasnadi
The recently derived sum rules for the scattering phase shifts of the Overhauser geminals (being 2-body-wave functions which parametrize the pair density together with an appropria…
Brane universes tested against astronomical data
Mariusz P. Dabrowski, Wlodzimierz Godlowski, Marek Szydlowski
We discuss observational constrains coming from supernovae imposed on the behaviour of the Randall-Sundrum models. The data indicates that, under the assumption that we admit zero…
Brane universes tested by supernovae
Mariusz P. Dabrowski, Wlodzimierz Godlowski, Marek Szydlowski
We discuss observational constrains coming from supernovae Ia \cite{Perlmutter99} imposed on the behaviour of the Randall-Sundrum models. In the case of dust matter on the brane, t…
Chern-Simons Field Theories with Non-semisimple Gauge Group of Symmetry
Franco Ferrari
Subject of this work is a class of Chern-Simons field theories with non-semisimple gauge group, which may well be considered as the most straightforward generalization of an Abelia…
Einsteinian Strengths and Dynamical Degrees of Freedom for Alternative Gravity Theories
Janusz Garecki
In this paper we present the results of our calculations of the Einsteinian strengths S_E(d) and numbers dynamical degrees of freedom N_{DF}(d) for alternative gravity theories in…
Propagation of photons in resting and moving media
Jaroslaw Zalesny
The propagation of photon in a dielectric may be described with the help of the scalar and vector potentials of the medium. The main novelty of the paper is that the concept of the…