| [1] | Alves A M, Euzéebio R D. Periodic trajectories in planar discontinuous piecewise linear systems with only centers and with a nonregular switching line. Nonlinearity, 2023, 36(12): 6747-6776 | | [2] | Anacleto M E, Llibre J, Valls C, Vidal C. Limit cycles of discontinuous piecewise differential systems formed by linear centers in $R^2$ and separated by two circles. Nonlin Anal: Real World Appl, 2021, 60: 103281 | | [3] | Andrade K S, Cespedes O A R, Cruz D R, Novaes D D. Higher order Melnikov analysis for planar piecewise linear vector flelds with nonlinear switching curve. J Differ Equ, 2021, 287: 1-36 | | [4] | Barkat M, Benterki R, Llibre J. The extended 16th Hilbert problem for a class of discontinuous piecewise differential systems. Nonlinear Dyn, 2023, 111(2): 1475-1484 | | [5] | Baymout L, Benterki R, Llibre J. Limit cycles of the discontinuous piecewise differential systems separated by a nonregular line and formed by a linear center and a quadratic one. Int J Bifurcation and Chaos, 2024, 34(5): 2450058 | | [6] | Braun F, da Cruz L P C, Torregrosa J. On the number of limit cycles in piecewise planar quadratic differential systems. Nonlinear Anal Real World Appl, 2024, 79: 104124 | | [7] | Cardin P T, Torregrosa J. Limit cycles in planar piecewise linear differential systems with nonregular separation line. Physica D: Nonlinear Phenomena, 2016, 337: 67-82 | | [8] | de Carvalho Braga D, Mello L F. More than three limit cycles in discontinuous piecewise linear differential systems with two zones in the plane. Int J Bifurcation and Chaos, 2014, 24(4): 1450056 | | [9] | di Bernardo M, Budd C J, Champneys A R, Kowalczyk P. Piecewise Smooth Dynamical Systems, Theory and Applications. London: Springer-Verlag, 2008 | | [10] | Filippov A F. Differential Equations with Discontionuous Righthand Sides. Netherlands: Kluwer Academic, 1988 | | [11] | Fonseca A, Llibre J, Mello L F. Limit cycles in planar piecewise linear hamiltonian systems with three zones without equilibrium points. Int J Bifurcation and Chaos, 2023, 30(11): 2050157 | | [12] | Gasull A. Some open problems in low dimensional dynamical systems. SeMA J, 2021, 78(3): 233-269 | | [13] | Han M, Zhang W. On Hopf bifurcation in non-smooth planar systems. J Differ Equ, 2010, 248: 2399-2416 | | [14] | He D, Llibre J. Limit cycles in a class of planar discontinuous piecewise quadratic differential systems with a non-regular line of discontinuity (II). Mediterr J Math, 2024, 21(6): Article 174 | | [15] | Hilbert D. Mathematical problems. Bull Amer Math, 1902, 8: 437-479 | | [16] | Huan S, Yang X. On the number of limit cycles in general planar piecewise linear systems. Discrete Con- tinuous Dyn Syst, 2012, 32(6): 2147-2164 | | [17] | 姜雪丽, 邓璇, 文邱浩, 熊艳琴. 带两条平行切换直线多项式微分系统的极限环分支. 数学物理学报, 2022, 42A(2): 353-364 | | [17] | Jiang X L, Deng X, Wen Q H, Xiong Y Q. Limit circle bifurcations of polynomial differential system with two parallel switch straight lines. Acta Math Sci, 2022, 42A(2): 353-364 | | [18] | Leine R I, Nijmeijer H. Dynamics and Bifurcations of Nonsmooth Mechanical Systems. Lecture Notes in Applied and Computational Mechanics. Berlin:Springer-Verlag, 2004 | | [19] | 李时敏, 陈挺, 刘玉记, 黎小丽. 平面折射系统极限环的存在和唯一性. 中国科学: 数学, 2021, 51(4): 605-614 | | [19] | Li S, Chen T, Liu Y, Li X. On the existence and uniqueness of limit cycles in planar refracted systems. Sci China: Math, 2021, 51(4): 605-614 | | [20] | Li T, Llibre J. Limit cycles in piecewise polynomial systems allowing a non-regular switching boundary. Physica D, 2021, 419: 132855 | | [21] | Li Z, Liu X. Limit cycles in the discontinuous planar piecewise linear systems with three zones. Qual Theory Dyn Syst, 2021, 20: 1-22 | | [22] | Li Z, Liu X. Limit cycles in discontinuous piecewise linear planar Hamiltonian systems without equilibrium points. Int J Bifurcation and Chaos, 2022, 32(10): 2250153 | | [23] | Li Z, Liu X. Impact limit cycles in the planar piecewise linear hybrid systems. Commun Nonlinear Sci Numer Simul, 2023, 119: 107074 | | [24] | Liang F, Romanovski V G, Zhang D. Limit cycles in small perturbations of a planar piecewise linear Hamiltonian system with a non-regular separation line. Chaos Solit Fract, 2018, 111: 18-34 | | [25] | Liu H, Wei Z, Moroz I. Limit cycles and bifurcations in a class of planar piecewise linear systems with a nonregular separation line. J Math Anal Appl, 2023, 526(2): 127318 | | [26] | Llibre J, Mereu A C. Limit cycles for discontinuous quadratic differential systems with two zones. J Math Anal Appl, 2014, 413(2): 763-775 | | [27] | Llibre J, Ponce E. Three nested limit cycles in discontinuous piecewise linear differential systems with two zones. Dyn Contin Discrete Impuls Syst Ser B Appl Algorithms, 2012, 19(3): 325-335 | | [28] | Llibre J, Tang Y. Limit cycles of discontinuous piecewise quadratic and cubic polynomial perturbations of a linear center. Discrete Contin Dyn Syst Ser B, 2019, 24(4): 1769-1784 | | [29] | Llibre J, Teixeira M A. Piecewise linear differential systems without equilibria produce limit cycles? Non- linear Dyn, 2017, 88: 157-164 | | [30] | Llibre J, Teixeira M A. Piecewise linear differential systems with only centers can create limit cycles? Nonlinear Dyn, 2018, 91: 249-255 | | [31] | Llibre J, Zhang X. Limit cycles created by piecewise linear centers. Chaos, 2019, 29: 053116 | | [32] | Llibre J, Valls C. The extended 16th Hilbert problem for discontinuous piecewise systems formed by linear centers and linear Hamiltonian saddles separated by a nonregular line. Int J Bifurcation and Chaos, 2023, 33(16): 2350196 | | [33] | Novaes D D. On the Hilbert number for piecewise linear vector flelds with algebraic discontinuity set. Physica D, 2022, 441: 133523 | | [34] | Sun L, Du Z. Crossing limit cycles in planar piecewise linear systems separated by a nonregular line with node-node type critical points. Int J Bifurcation and Chaos, 2024, 34(4): 2450049 | | [35] | 杨纪华, 马亮. 具有尖点环的非光滑微分系统的极限环分支. 数学物理学报, 2023, 43A(6): 1667-1680 | | [35] | Yang J, Ma L. Limit cycle bifurcations of a non-smooth differential system with a cuspidal loop. Acta Math Sci, 2023, 43A(6): 1667-1680 | | [36] | Zhao Q, Wang C, Yu J. Limit cycles in discontinuous planar piecewise linear systems separated by a nonregular line of center-center type. Int J Bifurcation and Chaos, 2021, 31: 2150136 |
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