Minkowski dimension and slow-fast polynomial Li\'{e}nard equations near infinity

Autor: De Maesschalck, Peter, Huzak, Renato, Janssens, Ansfried, Radunović, Goran
Rok vydání: 2023
Předmět:
Zdroj: Qualitative Theory of Dynamical Systems (2023) 22:154
Druh dokumentu: Working Paper
DOI: 10.1007/s12346-023-00854-4
Popis: In planar slow-fast systems, fractal analysis of (bounded) sequences in $\mathbb R$ has proved important for detection of the first non-zero Lyapunov quantity in singular Hopf bifurcations, determination of the maximum number of limit cycles produced by slow-fast cycles, defined in the finite plane, etc. One uses the notion of Minkowski dimension of sequences generated by slow relation function. Following a similar approach, together with Poincar\'{e}--Lyapunov compactification, in this paper we focus on a fractal analysis near infinity of the slow-fast generalized Li\'{e}nard equations $\dot x=y-\sum_{k=0}^{n+1} B_kx^k,\ \dot y=-\epsilon\sum_{k=0}^{m}A_kx^k$. We extend the definition of the Minkowski dimension to unbounded sequences. This helps us better understand the fractal nature of slow-fast cycles that are detected inside the slow-fast Li\'{e}nard equations and contain a part at infinity.
Databáze: arXiv