Oleg Viro, “From the sixteenth Hilbert problem to tropical geometry”, Jpn. J. Math., 3, no. 2, 2008, 185
L. A. Cherkas, A. A. Grin’, “Limit cycle function of the second kind for autonomous systems on the cylinder”, Diff Equat, 47, no. 4, 2011, 462
A. A. Grin’, S. V. Rudevich, “Dulac-Cherkas Test for Determining the Exact Number of Limit Cycles of Autonomous Systems on the Cylinder”, Diff Equat, 55, no. 3, 2019, 319
O. KOZLOVSKI, “Cyclicity in families of circle maps”, Ergod. Th. Dynam. Sys., 33, no. 5, 2013, 1502
Armengol Gasull, Chengzhi Li, Joan Torregrosa, “A new Chebyshev family with applications to Abel equations”, Journal of Differential Equations, 252, no. 2, 2012, 1635
Zhongjian Wang, Dingheng Pi, “Regularization of Planar Piecewise Smooth Systems with a Heteroclinic Loop”, Int. J. Bifurcation Chaos, 31, no. 15, 2021, 2150228
Victoriano Carmona, Fernando Fernández-Sánchez, Douglas D. Novaes, “Uniform upper bound for the number of limit cycles of planar piecewise linear differential systems with two zones separated by a straight line”, Applied Mathematics Letters, 137, 2023, 108501
Salomón Rebollo-Perdomo, “Medium Amplitude Limit Cycles of Some Classes of Generalized Liénard Systems”, Int. J. Bifurcation Chaos, 25, no. 10, 2015, 1550128
Armengol Gasull, Joan Torregrosa, Xiang Zhang, “Piecewise linear differential systems with an algebraic line of separation”, ejde, 2020, no. 01-132, 2020, 19
Louiza Baymout, Rebiha Benterki, “Four Limit Cycles of Three-Dimensional Discontinuous Piecewise Differential Systems Having a Sphere as Switching Manifold”, Int. J. Bifurcation Chaos, 34, no. 03, 2024, 2450030