Low Regularity Stability for Subcritical Generalized Korteweg-de Vries Equations

In this thesis we prove polynomial-in-time upper bounds for the orbital instability of solitons for subcritical generalized Korteweg-de Vries equations in $H^{s}_{x}(\mathbb{R})$ with $s < 1$. By combining coercivity estimates of Weinstein with the $I$-method as developed by Colliander, Keel, St...

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Bibliographic Details
Main Author: Pigott, Brian
Other Authors: Colliander, James
Language:en_ca
Published: 2011
Subjects:
Online Access:http://hdl.handle.net/1807/31899