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  Solving the Einstein constraints in periodic spaces with a multigrid approach

Bentivegna, E. (2014). Solving the Einstein constraints in periodic spaces with a multigrid approach. Classical and quantum gravity, 31(3): 035004. doi:10.1088/0264-9381/31/3/035004.

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Item Permalink: http://hdl.handle.net/11858/00-001M-0000-0013-7693-0 Version Permalink: http://hdl.handle.net/11858/00-001M-0000-0015-36A5-8
Genre: Journal Article

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1305.5576.pdf (Preprint), 3MB
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 Creators:
Bentivegna, Eloisa1, Author              
Affiliations:
1Astrophysical Relativity, AEI-Golm, MPI for Gravitational Physics, Max Planck Society, escidoc:24013              

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Free keywords: General Relativity and Quantum Cosmology, gr-qc
 Abstract: Novel applications of Numerical Relativity demand for more flexible algorithms and tools. In this paper, I develop and test a multigrid solver, based on the infrastructure provided by the Einstein Toolkit, for elliptic partial differential equations on spaces with periodic boundary conditions. This type of boundary often characterizes the numerical representation of cosmological models, where space is assumed to be made up of identical copies of a single fiducial domain, so that only a finite volume (with periodic boundary conditions at its edges) needs to be simulated. After a few tests and comparisons with existing codes, I use the solver to generate initial data for an infinite, periodic, cubic black-hole lattice.

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 Dates: 2013-05-232014
 Publication Status: Published in print
 Pages: 25 pages, 15 figures
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 Table of Contents: -
 Rev. Method: -
 Identifiers: arXiv: 1305.5576
DOI: 10.1088/0264-9381/31/3/035004
 Degree: -

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Title: Classical and quantum gravity
Source Genre: Journal
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Publ. Info: Bristol, U.K. : Institute of Physics
Pages: - Volume / Issue: 31 (3) Sequence Number: 035004 Start / End Page: - Identifier: ISSN: 0264-9381
CoNE: http://pubman.mpdl.mpg.de/cone/journals/resource/954925513480_1