10 citations · 24 across the 5 of their papers we have counts for
3 papers · 1 filter
Symmetry reduction of gravitational Lagrangians
Guillermo Frausto, Ivan KoláÅ, Tomáš Málek +1
We analyze all possible symmetry reductions of Lagrangians that yield fully equivalent field equations for any 4-dimensional metric theory of gravity. Specifically, we present a co…
Inner-extremal regular black holes from pure gravity
Francesco Di Filippo, Ivan KoláÅ, David Kubiznak
Recently it was shown that essentially all regular black hole models constructed so far can be obtained as solutions of vacuum gravity equations, upon considering an infinite serie…
Dust collapse and horizon formation in Quadratic Gravity
Luca Buoninfante, Francesco Di Filippo, Ivan KoláŠ+1
Quadratic Gravity supplements the Einstein-Hilbert action by terms quadratic in the spacetime curvature. This leads to a rich phase space of static, compact gravitating objects inc…