8 citations · 28 across the 7 of their papers we have counts for
8 papers
Hyperboloidal Initial Data with Prescribed Asymptotic Charges
Károly Csukás, János Östör, István Rácz
A novel method is introduced for constructing hyperboloidal initial data with direct analytic control over asymptotic charges prior to solving the Einstein constraint equations. Us…
Hyperboloidal initial data without logarithmic singularities
Károly Csukás, István Rácz
Andersson and Chruściel showed that generic asymptotically hyperboloidal initial data sets admit polyhomogeneous expansions, and that only a non-generic subclass of solutions of th…
Quasi-local spin-angular momentum and the construction of axial vector fields
István Rácz
A novel procedure is presented which allows the construction of all axial vector fields on Riemannian two-spheres. Using these axial vector fields and the centre-of-mass unit spher…
Is it possible to construct asymptotically flat initial data using the evolutionary forms of the constraints?
Károly Csukás, István Rácz
Near-Kerr black hole initial datasets are constructed by applying either the parabolic-hyperbolic or the algebraic-hyperbolic form of the constraints. In both cases, strongly and w…
Near Horizon Geometries and Black Hole Holograph
J. Lewandowski, I. Racz, A. Szereszewski
Two quasi local approaches to black holes are combined: Near Horizon Geometries (NHG) and stationary Black Hole Holographs (BHH). Necessary and sufficient conditions on BHH data fo…
Can we prescribe the physical parameters of multiple black holes?
István Rácz
The parabolic-hyperbolic form of the constraints and superposed Kerr-Schild black holes have already been used to provide a radically new initialization of binary black hole config…
A simple method of constructing binary black hole initial data
István Rácz
By applying a parabolic-hyperbolic formulation of the constraints and superposing Kerr-Schild black holes, a simple method is introduced to initialize time evolution of binary syst…
Generating new perfect-fluid solutions from known ones
I. Racz, J. Zsigrai
Stationary perfect-fluid configurations of Einstein's theory of gravity are studied. It is assumed that the 4-velocity of the fluid is parallel to the stationary Killing field, and…