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Low regularity solutions of two fifth-order KDV type equations
The Kawahara and modified Kawahara equations are fifth-order KdV type equations that have been derived to model many physical phenomena such as gravity-capillary waves and magneto-sound propagation in plasmas. This paper establishes the local well-posedness of the initial-value problem for the Kawah...
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Published in: | Journal d'analyse mathématique (Jerusalem) 2009, Vol.107 (1), p.221-238 |
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Main Authors: | , , , |
Format: | Article |
Language: | English |
Subjects: | |
Citations: | Items that this one cites Items that cite this one |
Online Access: | Get full text |
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Summary: | The Kawahara and modified Kawahara equations are fifth-order KdV type equations that have been derived to model many physical phenomena such as gravity-capillary waves and magneto-sound propagation in plasmas. This paper establishes the local well-posedness of the initial-value problem for the Kawahara equation in
H
s
(
R
) with
s
≥ − 7/4 and the local well-posedness for the modified Kawahara equation in
H
s
(
R
) with
s
≥ − 1/4. To prove these results, we derive a fundamental estimate on dyadic blocks for the Kawahara equation through the [
k
;
Z
]_multiplier norm method of Tao [14] and use this to obtain new bilinear and trilinear estimates in suitable Bourgain spaces. |
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ISSN: | 0021-7670 1565-8538 |
DOI: | 10.1007/s11854-009-0009-0 |