299 citations · 603 across the 28 of their papers we have counts for
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hep-th2015★ 34 cited
Avoidance of singularities in asymptotically safe Quantum Einstein Gravity
Georgios Kofinas, Vasilios Zarikas
New general spherically symmetric solutions have been derived with a cosmological "constant" Λas a source. This Λfield is not constant but it satisfies the properties of the asympt…
hep-th2011★ 6 cited
A solution of the coincidence problem based on the recent galactic core black hole mass density increase
Georgios Kofinas, Vasilios Zarikas
A mechanism capable to provide a natural solution to two major cosmological problems, i.e. the cosmic acceleration and the coincidence problem, is proposed. A specific brane-bulk e…
hep-th1999★ 3 cited
Derivative expansion of quadratic operators in a general 't Hooft gauge
Vasilios Zarikas
A derivative expansion technique is developed to compute functional determinants of quadratic operators, non diagonal in spacetime indices. This kind of operators arise in general…