15 citations · 88 across the 16 of their papers we have counts for
3 papers · 1 filter
New conservation laws and exact cosmological solutions in Brans-Dicke cosmology with an extra scalar field
Antonios Mitsopoulos, Michael Tsamparlis, Genly Leon +1
The derivation of conservation laws and invariant functions is an essential procedure for the investigation of nonlinear dynamical systems. In this study we consider a two-field co…
Constructing the CKVs of Bianchi III and V spacetimes
Antonios Mitsopoulos, Michael Tsamparlis, Andronikos Paliathanasis
We determine the conformal algebra of Bianchi III and Bianchi V spacetimes or, equivalently, we determine all Bianchi III and Bianchi V spacetimes which admit a proper conformal Ki…
Symmetries of spacetimes embedded with an Electromagnetic String Fluid
Michael Tsamparlis, Antonios Mitsopoulos, Andronikos Paliathanasis
The electromagnetic string fluid (EMSF) is an anisotropic charged string fluid interacting with a strong magnetic field. In this fluid we consider the double congruence defined by…