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On the existence, structure and stability of static and stationary solutions of the Einstein-Vlasov system
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- Andreasson, Håkan, 1966 (author)
- Gothenburg University,Göteborgs universitet,Institutionen för matematiska vetenskaper, matematik,Department of Mathematical Sciences, Mathematics,Chalmers tekniska högskola,Chalmers University of Technology,University of Gothenburg
- (creator_code:org_t)
- ISBN 9780735412088
- AIP Publishing LLC, 2014
- 2014
- English.
- In: AIP Conference Proceedings: Plasma Physics and Relativistic Fluids. - : AIP Publishing LLC. - 0094-243X .- 1551-7616. - 9780735412088 ; 1578, s. 129-139
- Conference paper (peer-reviewed)
Abstract
Subject headings
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- The present status on the existence, structure and stability of static and stationary solutions of the Einstein-Vlasov system is reviewed. Under the assumptions that a spherically symmetric static object has isotropic pressure and non-increasing energy density outwards, Buchdahl showed 1959 the bound M/R<4/9, where M is the ADM mass and R the outer radius. Most static solutions of the Einstein-Vlasov system do not satisfy these assumptions. The bound M/R<4/9 nevertheless holds and it is sharp. An analogous bound in the charged case is also given. The important question of stability of spherically symmetric static solutions is presently open but numerical results are available and these are reviewed. A natural question is to go beyond spherical symmetry and consider axially symmetric solutions, and a recent result on the existence of axially symmetric stationary solutions is also discussed.
Subject headings
- NATURVETENSKAP -- Fysik -- Fusion, plasma och rymdfysik (hsv//swe)
- NATURAL SCIENCES -- Physical Sciences -- Fusion, Plasma and Space Physics (hsv//eng)
- NATURVETENSKAP -- Matematik (hsv//swe)
- NATURAL SCIENCES -- Mathematics (hsv//eng)
Keyword
- Einstein-Vlasov system
- Buchdahl inequalities
- axially symmetric spacetimes
- axially symmetric spacetimes
Publication and Content Type
- ref (subject category)
- kon (subject category)
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