Revisitation of a Tartar's result on a semilinear hyperbolic system with null condition

19 Jan 2020 Bianchini Roberta Staffilani Gigliola

We revisit a method introduced by Tartar for proving global well-posedness of a semilinear hyperbolic system with null quadratic source in one space dimension. A remarkable point is that, since no dispersion effect is available for 1D hyperbolic systems, Tartar's approach is entirely based on spatial localization and finite speed of propagation...

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