95 citations · 646 across the 32 of their papers we have counts for
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gr-qc2015★ 40 cited
Conditional symmetries in axisymmetric quantum cosmologies with scalar fields and the fate of the classical singularities
Adamantia Zampeli, Theodoros Pailas, Petros A. Terzis +1
In this paper, the classical and quantum solutions of some axisymmetric cosmologies coupled to a massless scalar field are studied in the context of minisuperspace approximation. I…
gr-qc2015★ 17 cited
Variational Contact Symmetries of Constraint Lagrangians
Petros A. Terzis, N. Dimakis, T. Christodoulakis +2
The investigation of contact symmetries of re--parametrization invariant Lagrangians of finite degrees of freedom and quadratic in the velocities is presented. The main concern of…