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Global stability of solutions to nonlinear wave equations

Global stability of solutions to nonlinear wave equations We consider the problem of global stability of solutions to a class of semilinear wave equations with null condition in Minkowski space. We give sufficient conditions on the given solution, which guarantees stability. Our stability result can be reduced to a small data global existence result for a class of semilinear wave equations with linear terms $$B^{\mu \nu }\partial _\mu \Phi (t, x)\partial _\nu \phi $$ B μ ν ∂ μ Φ ( t , x ) ∂ ν ϕ , $$L^\mu (t,x)\partial _\mu \phi $$ L μ ( t , x ) ∂ μ ϕ and quadratic terms $$h^{\mu \nu }(t, x)\partial _\mu \phi \partial _\nu \phi $$ h μ ν ( t , x ) ∂ μ ϕ ∂ ν ϕ where the functions $$\Phi (t, x)$$ Φ ( t , x ) , $$L^\mu (t, x)$$ L μ ( t , x ) , $$h^{\mu \nu }(t, x)$$ h μ ν ( t , x ) decay rather weakly and the constants $$B^{\mu \nu }$$ B μ ν satisfy the null condition. We show the small data global existence result by using the new approach developed by Dafermos–Rodnianski. In particular, we prove the global stability result under weaker assumptions than those imposed by Alinhac (Indiana Univ Math J 58(6):2543–2574, 2009). http://www.deepdyve.com/assets/images/DeepDyve-Logo-lg.png Selecta Mathematica Springer Journals

Global stability of solutions to nonlinear wave equations

Selecta Mathematica , Volume 21 (3) – Aug 13, 2014

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References (33)

Publisher
Springer Journals
Copyright
Copyright © 2014 by Springer Basel
Subject
Mathematics; Mathematics, general
ISSN
1022-1824
eISSN
1420-9020
DOI
10.1007/s00029-014-0165-7
Publisher site
See Article on Publisher Site

Abstract

We consider the problem of global stability of solutions to a class of semilinear wave equations with null condition in Minkowski space. We give sufficient conditions on the given solution, which guarantees stability. Our stability result can be reduced to a small data global existence result for a class of semilinear wave equations with linear terms $$B^{\mu \nu }\partial _\mu \Phi (t, x)\partial _\nu \phi $$ B μ ν ∂ μ Φ ( t , x ) ∂ ν ϕ , $$L^\mu (t,x)\partial _\mu \phi $$ L μ ( t , x ) ∂ μ ϕ and quadratic terms $$h^{\mu \nu }(t, x)\partial _\mu \phi \partial _\nu \phi $$ h μ ν ( t , x ) ∂ μ ϕ ∂ ν ϕ where the functions $$\Phi (t, x)$$ Φ ( t , x ) , $$L^\mu (t, x)$$ L μ ( t , x ) , $$h^{\mu \nu }(t, x)$$ h μ ν ( t , x ) decay rather weakly and the constants $$B^{\mu \nu }$$ B μ ν satisfy the null condition. We show the small data global existence result by using the new approach developed by Dafermos–Rodnianski. In particular, we prove the global stability result under weaker assumptions than those imposed by Alinhac (Indiana Univ Math J 58(6):2543–2574, 2009).

Journal

Selecta MathematicaSpringer Journals

Published: Aug 13, 2014

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