58 citations · 69 across the 3 of their papers we have counts for
3 papers
Hyperbolicity of scalar-tensor theories of gravity
Marcelo Salgado, David Martinez-del Rio, Miguel Alcubierre +1
Two first order strongly hyperbolic formulations of scalar-tensor theories of gravity (STT) allowing nonminimal couplings (Jordan frame) are presented along the lines of the 3+1 de…
Constraint and gauge shocks in one-dimensional numerical relativity
Bernd Reimann, Miguel Alcubierre, José A. González +1
We study how different types of blow-ups can occur in systems of hyperbolic evolution equations of the type found in general relativity. In particular, we discuss two independent c…
Stellar polytropes and Navarro--Frenk--White dark matter halos: a connection to Tsallis entropy
Luis G. Cabral-Rosetti, Tonatiuh Matos, Darío Núñez +2
We present an alternative for the description of galactic halos based on Tsallis' non--extensive entropy formalism; on this scheme, halos are stellar polytropes characterized by th…