2 citations · 3 across the 3 of their papers we have counts for
7 papers
Bimetric interactions based on metric congruences
Mikica Kocic
In massive gravity and bigravity, spin-2 interactions are defined in terms of a square root matrix that involves two metrics. In this work, the interactions are constructed using a…
Generalized Vaidya solutions in bimetric gravity
Marcus Högås, Mikica Kocic, Francesco Torsello +1
In general relativity, the endpoint of spherically symmetric gravitational collapse is a Schwarzschild--[(A)dS] black hole. In bimetric gravity, it has been speculated that a stati…
Note on bimetric causal diagrams
Mikica Kocic
A new kind of diagrams is presented, showing the causal structure of bimetric interactions.
Covariant BSSN formulation in bimetric relativity
Francesco Torsello, Mikica Kocic, Marcus Högås +1
Numerical integration of the field equations in bimetric relativity is necessary to obtain solutions describing realistic systems. Thus, it is crucial to recast the equations as a…
On the ratio of lapses in bimetric relativity
Mikica Kocic, Anders Lundkvist, Francesco Torsello
The two lapse functions in the Hassan-Rosen bimetric theory are not independent. Without knowing the relation between them, one cannot evolve the equations in the 3+1 formalism. Th…
Causal propagation of constraints in bimetric relativity in standard 3+1 form
Mikica Kocic
The goal of this work was to investigate the propagation of the constraints in the ghost-free bimetric theory where the evolution equations are in standard 3+1 form. It is establis…