Journal
JOURNAL OF DIFFERENTIAL EQUATIONS
Volume 251, Issue 12, Pages 3488-3499Publisher
ACADEMIC PRESS INC ELSEVIER SCIENCE
DOI: 10.1016/j.jde.2011.08.020
Keywords
Higher order shallow water equation; Well-posedness; Global existence; Blow-up
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Funding
- NSF of PR China [11071266]
- Natural Science Foundation of CQ CSTC [2010BB9218]
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This paper deals with the Cauchy problem for a higher order shallow water equation y(t) + au(x)y + buy(x) = 0, where y := Lambda(2k)u equivalent to (I - partial derivative(2)(x))(k)u and k = 2. The local well-posedness of solutions for the Cauchy problem in Sobolev space H-s(R) with s >= 7/2 is obtained. Under some assumptions, the existence and uniqueness of the global solutions to the equation are shown, and conditions that lead to the development of singularities in finite time for the solutions are also acquired. Finally, the weak solution for the equation is considered. Crown Copyright (C) 2011 Published by Elsevier Inc. All rights reserved.
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