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arXiv 1812.01166math.DS
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带吸收项的带符号Kuramoto-Sivashinsky方程的行波振动模式

Traveling wave oscillatory patterns in a signed Kuramoto-Sivashinsky equation with absorption

Yvonne Bronsard Alama, Jean-Philippe Lessard

摘要:

本文给出Galaktionov和Svirshchevskii关于四阶分段线性常微分方程渐近稳定周期轨道的存在性和全局唯一性猜想的部分证明.四阶方程来自于对带符号的Kuramoto-Sivashinsky方程中的行波模式的研究。证据是双重的。首先,将周期轨道的求解问题转化为四维空间中的零点求解问题,并利用牛顿法和压缩映射定理,通过计算机辅助证明,解决了该问题。其次,将相空间中周期轨道的严格界与不连续动力系统理论相结合,证明了该轨道是渐进稳定的。

英文摘要:

In this paper, a partial proof of a conjecture raised by Galaktionov and Svirshchevskii concerning existence and global uniqueness of an asymptotically stable periodic orbit in a fourth-order piecewise linear ordinary differential equation is presented. The fourth-order equation comes from the study of traveling wave patterns in a signed Kuramoto-Sivashinsky equation with absorption. The proof is twofold. First, the problem of solving for the periodic orbit is transformed into a zero finding problem in four dimensional space, which is solved with a computer-assisted proof based on Newton's method and the contraction mapping theorem. Second, the rigorous bounds about the periodic orbit in phase space are combined with the theory of discontinuous dynamical systems to prove that the orbit is asymptotically stable.

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。

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