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arXiv · 2307.15578

Hilbert number for a family of piecewise nonautonomous equations

J. L. Bravo·M. Fernandez·I. Ojeda
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Abstract

For family $x'=(a_0+a_1\cos t+a_2 \sin t)|x|+b_0+b_1 \cos t+b_2 \sin t$, we solve three basic problems related with its dynamics. First, we characterize when it has a center (Poincar\'e center focus problem). Second, we show that each equation has a finite number of limit cycles (finiteness problem), and finally we give a uniform upper bound for the number of limit cycles (Hilbert's 16th problem).

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J. L. Bravo, M. Fernandez, I. Ojeda. 2023-07-28. Hilbert number for a family of piecewise nonautonomous equations. https://arxiv.org/abs/2307.15578

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