Advances in Differential Equations

A Necessary condition for $H^\infty $ well-posedness of $p$-evolution equations

Alessia Ascanelli, Chiara Boiti, and Luisa Zanghirati

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We consider $p$-evolution equations, for $p\geq2$, with complex valued coefficients. We prove that a necessary condition for $H^\infty$ well-posedness of the associated Cauchy problem is that the imaginary part of the coefficient of the subprincipal part (in the sense of Petrowski) satisfies a decay estimate as $|x|\to+\infty$.

Article information

Adv. Differential Equations, Volume 21, Number 11/12 (2016), 1165-1196.

First available in Project Euclid: 13 October 2016

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Mathematical Reviews number (MathSciNet)

Zentralblatt MATH identifier

Primary: 35G10: Initial value problems for linear higher-order equations 35A27: Microlocal methods; methods of sheaf theory and homological algebra in PDE [See also 32C38, 58J15]


Ascanelli, Alessia; Boiti, Chiara; Zanghirati, Luisa. A Necessary condition for $H^\infty $ well-posedness of $p$-evolution equations. Adv. Differential Equations 21 (2016), no. 11/12, 1165--1196.

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