We present a new formulation of the Einstein equations based on a conformal and traceless decomposition of the covariant form of the Z4 system. This formulation combines the …
Numerical relativity simulations of compact binaries with the Z4c and Baumgarte-Shapiro- Shibata-Nakamura-Oohara-Kojima (BSSNOK) formulations are compared. The Z4c …
In this paper we develop a new well-balanced discontinuous Galerkin (DG) finite element scheme with subcell finite volume (FV) limiter for the numerical solution of the Einstein–Euler …
D Alic, W Kastaun, L Rezzolla - … Review D—Particles, Fields, Gravitation, and …, 2013 - APS
Following previous work in vacuum spacetimes, we investigate the constraint-damping properties in the presence of matter of the recently developed traceless, conformal and …
M Dumbser, F Guercilena, S Köppel, L Rezzolla… - Physical Review D, 2018 - APS
We present a strongly hyperbolic first-order formulation of the Einstein equations based on the conformal and covariant Z4 system (CCZ4) with constraint-violation damping, which we …
In this paper we propose an extension of the generalized Lagrangian multiplier method (GLM) of Munz et al.[52],[30], which was originally conceived for the numerical solution of the …
With the recent advent of multimessenger gravitational-wave astronomy and in anticipation of more sensitive, next-generation gravitational-wave detectors, we investigate the …
In this paper, we present a new explicit second-order accurate structure-preserving finite volume scheme for the first-order hyperbolic reformulation of the Navier–Stokes–Korteweg …
In this work we present a novel second order accurate well balanced (WB) finite volume (FV) scheme for the solution of the general relativistic magnetohydrodynamics (GRMHD) …