A NOTE ON THE CAUCHY PROBLEM OF A MODIFIED CAMASSA-HOLM EQUATION WITH CUBIC NONLINEARITY

作者：Fu, Ying^*

来源：Discrete and Continuous Dynamical Systems, 2015, 35(5): 2011-2039.

DOI：10.3934/dcds.2015.35.2011

• Besov space
• local well-posedness
• blow up
• analyticity

Considered herein is the Cauchy problem for a modified Camassa-Holm equation with cubic nonlinearity. The local well-posedness in Besov space B-2,1(s) with the critical index s = 5/2 is established. Then a lower bound for the maximal time of existence of its solutions is found. With analytic initial data, the solutions to this Cauchy problem are analytic in both variables, globally in space and locally in time, which extends the result of Himonas and Misiolek [A. Himonas, G. Misiolek, Analyticity of the Cauchy problem for an integrable evolution equation, Math. Ann. 327 (2003) 575-584] to more general mu-version equations and systems.

• 出版日期2015-5
• 单位西北大学