arXivDaily arXiv每日学术速递 周一至周五更新
arXiv周末暂无论文更新,休息一下吧,周末愉快~~
arXiv 2002.09531math.AP
收藏

耦合gKdV方程耦合系统的孤波解和整体适定性

Solitary wave solutions and global well-posedness for a coupled system of gKdV equations

Andressa Gomes, Ademir Pastor

摘要:

本文考虑广义Korteweg-de Vries方程组的耦合系统的初值问题。在能量空间中,我们给出了Gagliardo-Nirenberg型不等式的最佳常数与整体解存在的判据之间的关系。我们证明了这样一个常数是直接相关的孤立波解的存在性问题,具有最小的质量,所谓的基态解。为了保证基态的存在,我们使用了变分方法。

英文摘要:

In this work we consider the initial-value problem associated with a coupled system of generalized Korteweg-de Vries equations. We present a relationship between the best constant for a Gagliardo-Nirenberg type inequality and a criterion for the existence of global solutions in the energy space. We prove that such a constant is directly related to the existence problem of solitary-wave solutions with minimal mass, the so called ground state solutions. To guarantee the existence of ground states we use a variational method.

机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。

↑