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Global Existence of Solutions to Multiple Speed Systems of Quasilinear Wave Equations in Exterior Domains

  • Jason Metcalfe , Makoto Nakamura and Christopher D. Sogge
Published/Copyright: July 27, 2005
Forum Mathematicum
From the journal Volume 17 Issue 1

Abstract

In this paper we prove global existence for certain multispeed Dirichlet-wave equations with quadratic nonlinearities outside of obstacles. We assume the natural null condition for systems of quasilinear wave equations with multiple speeds. The null condition only puts restrictions on the self-interactions of each wave family. We use the method of commuting vector fields and weighted space-time L2 estimates.

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Published Online: 2005-07-27
Published in Print: 2005-01-01

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