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arXiv · 2609.09636

Analysis and stability of the FitzHugh-Nagumo system with rapidly oscillating Neumann boundary condition

Alexander Rodriguez·Eduardo Cerpa
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Abstract

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.

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Alexander Rodriguez, Eduardo Cerpa. 2026-09-09. Analysis and stability of the FitzHugh-Nagumo system with rapidly oscillating Neumann boundary condition. https://arxiv.org/abs/2609.09636

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