Well-posedness, blow-up phenomena, and global solutions for the b-equation

By Joachim Escher, Zhaoyang Yin. 2008

127 citations recorded by the source corpus.

Abstract In the paper we first establish the local well-posedness for a family of nonlinear dispersive equations, the so called b-equation. Then we describe the precise blow-up scenario. Moreover, we prove that for the b-equation we do have the coexistence of global in time solutions and blow-up phenomena: Depending on the initial data solutions may exist for ever, while other data force the solution to produce a singularity in finite time. Finally, we prove the uniqueness and existence of global weak solution to the equation provided the initial data satisfy certain sign conditions.

Subfields: Mathematical Physics, Statistical and Nonlinear Physics

View Paper: https://www.semanticscholar.org/paper/786a90e5c40a4e8388e4dcc1c7bc59bcd3a06ada