58 citations · 117 across the 12 of their papers we have counts for
5 papers · 1 filter
On certain cosmological relics of the early string dynamics
Nikolaos A Batakis
The tracing of cosmological relics from the early string dynamics may enhance the theory and provide new perspectives on the major cosmological problems. This point is illustrated…
Bianchi-type string cosmology
N. A. Batakis
Bianchi-type string cosmology involves generalizations of the FRW backgrounds with three transitive spacelike Killing symmetries, but without any a priori assumption of isotropy in…
A new class of spatially homogeneous 4D string backgrounds
Nikolaos A. Batakis
A new class of spatially homogeneous 4D string backgrounds, the according to a recent classification, is presented and shown to contain only five generic types. I…
On the Classification of Spatially Homogeneous String Backgrounds
Nikolaos A. Batakis
A classification of all possible spatially homogeneous 4D string backgrounds (HSBs) has been obtained by appropriate ramification of the existing nine Bianchi types of homogeneous…
Anisotropic space-times in homogeneous string cosmology
N. A. Batakis, A. A. Kehagias
The dynamics of the early universe may have been profoundly influenced by spatial anisotropies. A search for such backgrounds in the context of string cosmology has uncovered the e…