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arXiv · 2602.04857

Generic one-parameter families of 3-dimensional Filippov Systems

R. D. Euzébio·M. A. Teixeira·D. J. Tonon
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Abstract

This paper addresses openness, density and structural stability conditions of one-parameter families of 3D piecewise smooth vector fields (PSVFs) defined around typical singularities. Our treatment is local and the switching set, $M$, is a $2D$ surface embedded in $\mathbb{R}^3$. In short, we analyze the robustness and normal forms of certain codimension one singularities that occur in PSVFs. The main machinery used in this paper involves the theory of contact between a vector field and $M$, Bifurcation Theory and the Topology of Manifolds. Our main result states robust mathematical statements resembling the classical Kupka-Smale Theorem in the sense that we establish the openness and density of a large class of PSVFs presenting generic and quasi-generic singularities. Due to the lack of uniqueness of certain solutions associated with PSVFs, we employ Filippov's theory as the basis of our approach throughout the paper.

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R. D. Euzébio, M. A. Teixeira, D. J. Tonon. 2026-02-04. Generic one-parameter families of 3-dimensional Filippov Systems. https://arxiv.org/abs/2602.04857

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