Oleg Viro, “From the sixteenth Hilbert problem to tropical geometry”, Jpn. J. Math., 3, № 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, № 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, № 3, 2019, 319
O. KOZLOVSKI, “Cyclicity in families of circle maps”, Ergod. Th. Dynam. Sys., 33, № 5, 2013, 1502
Armengol Gasull, Chengzhi Li, Joan Torregrosa, “A new Chebyshev family with applications to Abel equations”, Journal of Differential Equations, 252, № 2, 2012, 1635
Zhongjian Wang, Dingheng Pi, “Regularization of Planar Piecewise Smooth Systems with a Heteroclinic Loop”, Int. J. Bifurcation Chaos, 31, № 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, № 10, 2015, 1550128
Armengol Gasull, Joan Torregrosa, Xiang Zhang, “Piecewise linear differential systems with an algebraic line of separation”, ejde, 2020, № 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, № 03, 2024, 2450030