发表机构
Pontificia Universidad Católica de Chile(智利天主教 Pontificia 大学)
机构由 AI 辅助整理,请以论文原文为准。AI 中文总结
本文利用平均化方法和改进的收缩矩形法,分析了半直线上受高频正弦Neumann边界条件驱动的FitzHugh-Nagumo系统,证明了高频下系统可近似分解,并建立了时变边界条件下的稳定性结果。
AI 中文摘要
本文研究了定义在半直线上的FitzHugh-Nagumo系统,该系统在原点处通过Neumann边界条件受到正弦强迫项的作用。通过应用平均化方法,我们证明:如果振荡强迫的频率足够高,则该系统可以近似为一个高频振荡项与一个更简单系统的解的组合。这种方法使我们能够在持续时变边界条件下建立稳定性结果。除了平均化方法外,我们还使用了收缩矩形方法的一种改进,该方法经过调整以处理具有空间和时间变化系数的抛物型方程。
英文摘要
In this paper we study the FitzHugh-Nagumo system posed on the half-line with a sinusoidal forcing term acting at the origin through the Neumann boun\-da\-ry condition. By applying an averaging method, we show that, if the frequency of the oscillating forcing is high enough, then the system can be approximated by a combination of a highly-oscillatory term and the solution of a simpler system. This approach allows us to establish stability results under persistent time-varying boundary conditions. Along with the averaging method, we use an adaptation of the contracting rectangles method, tailored to handle parabolic equations with spatially and temporally varying coefficients.