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  Generalized gluing for Einstein constraint equations

Mazzieri, L. (2009). Generalized gluing for Einstein constraint equations. Calculus of Variations and Partial Differential Equations, 34(4), 453-473. doi:10.1007/s00526-008-0191-4.

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Item Permalink: http://hdl.handle.net/11858/00-001M-0000-0013-4501-5 Version Permalink: http://hdl.handle.net/11858/00-001M-0000-0013-4502-3
Genre: Journal Article

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CalcVar-34-453.pdf (Publisher version), 293KB
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 Creators:
Mazzieri, Lorenzo1, Author              
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1Geometric Analysis and Gravitation, AEI-Golm, MPI for Gravitational Physics, Max Planck Society, ou_24012              

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 Abstract: In this paper we construct a family of new (topologically distinct) solutions to the Einstein constraint equations by performing the generalized connected sum (or fiber sum) of two known compact m-dimensional constant mean curvature solutions (M-1, (g1), Pi 1) and (M-2, (g2), Pi(2)) along a common isometrically embedded k-dimensional sub-manifold (K, gK). Away from the gluing locus the metric and the second fundamental form of the new solutions can be chosen as close as desired to the ones of the original solutions. The proof is essentially based on the conformal method and the geometric construction produces a polyneck between M-1 and M-2 whose metric is modeled fiber-wise (i.e. along the slices of the normal fiber bundle of K) around a Schwarzschild metric; for these reasons the codimension n := m - k of K in M-1 and M-2 is required to be >= 3. In this sense our result is a generalization of the Isenberg-Mazzeo-Pollack gluing, which works for connected sum at points and in dimension 3. The solutions we obtain for the Einstein constraint equations can be used to produce new short time vacuum solutions of the Einstein system on a Lorentzian (m + 1)- dimensional manifold, as guaranteed by a well known result of Choquet-Bruhat.

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 Dates: 2009-04
 Publication Status: Published in print
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 Identifiers: eDoc: 410469
DOI: 10.1007/s00526-008-0191-4
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Title: Calculus of Variations and Partial Differential Equations
Source Genre: Journal
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Pages: - Volume / Issue: 34 (4) Sequence Number: - Start / End Page: 453 - 473 Identifier: ISSN: 0944-2669