科学研究
报告题目:

Long time existence for a two-dimensional strongly dispersive Boussinesq system

报告人:

徐丽 教授(北京航空航天大学)

报告时间:

报告地点:

理学院东北楼四楼报告厅 (404)

报告摘要:

We prove a long time existence result for the solutions of a two-dimensional Boussinesq system modeling the propagation of long, weakly nonlinear water waves. This system is exceptional in the sense that it is the only linearly well-posed system in the (abcd) family of Boussinesq systems whose eigenvalues of the linearized system have nontrivial zeroes. This new difficulty is solved by the use of "good unknowns " and of normal form techniques. This is a joint work with J.-C. Saut.