22 citations · 27 across the 2 of their papers we have counts for
9 papers · 1 filter
Horava-Lifshitz Cosmology
Elias Kiritsis, Georgios Kofinas
The cosmological equations suggested by the non-relativistic renormalizable gravitational theory proposed by Hořava are considered. It is pointed out that the early universe cosmol…
Universal Kounterterms in Lovelock AdS gravity
Georgios Kofinas, Rodrigo Olea
We show the universal form of the boundary term (Kounterterm series) which regularizes the Euclidean action and background-independent definition of conserved quantities for any Lo…
Universal regularization prescription for Lovelock AdS gravity
Georgios Kofinas, Rodrigo Olea
A definite form for the boundary term that produces the finiteness of both the conserved quantities and Euclidean action for any Lovelock gravity with AdS asymptotics is presented.…
Gravitating defects of codimension-two
Georgios Kofinas, Theodore Tomaras
Thin gravitating defects with conical singularities in higher codimensions and with generalized Israel matching conditions are known to be inconsistent for generic energy-momentum.…
Vacuum energy in Einstein-Gauss-Bonnet AdS gravity
Georgios Kofinas, Rodrigo Olea
A finite action principle for Einstein-Gauss-Bonnet AdS gravity is presented. The boundary term, which is different for even and odd dimensions, is a functional of the boundary met…
Brane-bulk energy exchange : a model with the present universe as a global attractor
G. Kofinas, G. Panotopoulos, T. N. Tomaras
The role of brane-bulk energy exchange and of an induced gravity term on a single braneworld of negative tension and vanishing effective cosmological constant is studied. It is sho…