Exciting workshop on numerical relativity


Ellery Ames and Håkan Andréasson both seem very pleased with our new results, but pointing at different branches?

It’s always exciting when I get together with my colleagues Håkan Andréasson and Ellery Ames, and good things tend to happen. Our work could be summarized as solving the Einstein-Vlasov equations and trying to find interesting things, such as black holes, geons and cosmic strings. Previously, we found some interesting galaxies, in particular the Hoag-like object depicted below.

A Hoag-like galaxy computed by solving the Einstein-Vlasov Equations. The image shows an isosurface of the computed density. For details see http://iopscience.iop.org/article/10.1088/0264-9381/33/15/155008 [Ames, Andréasson, Logg 2016].
Results will be published soon but I can already reveal that we found at least a couple of very exciting features – that I will describe in more detail later when we have verified our findings.



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logg Written by:

Anders Logg is Professor of Computational Mathematics at Chalmers University of Technology. His research interests are adaptive finite element methods, high-level automating software systems for solution of PDE, domain-specific languages and compilers in scientific computing, and applications in biomedicine, general relativity, and architecture. Logg is head of the unit for Computational Mathematics and excellence profile leader within Chalmers Area of Advance the Built Environment. He is director of the Swedish Network for Mathematics in Industry and member of the EMS Applied Mathematics Committee and the Swedish National Committee for Mathematics. He is co-founder and a core developer of the FEniCS Project, a leading open-source software for automated solution of PDE. Logg works part-time as scientific advisor to Fraunhofer-Chalmers Centre and Simula Research Laboratory.

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