This paper is concerned with nodal points, isolated points and cusp points (PD) appearing on a locus of period-doubling bifurcation points and the accurate location of them. Such points can be observed in periodic differential systems (e.g., Duffing's equation) in nonlinear oscillations. In a suitable two-dimensional parameter-plane, such points can be formulated as double (singular) points of plane curves defined by a bifurcation equation, and a method for computing them is proposed.
机构:
Dalian Univ Technol, Sch Math Sci, Dalian 116024, Peoples R China
Dalian Univ Technol, Sch Software, Dalian 116620, Peoples R ChinaDalian Univ Technol, Sch Math Sci, Dalian 116024, Peoples R China
Luo, Zhongxuan
Feng, Erbao
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Dalian Univ Technol, Sch Math Sci, Dalian 116024, Peoples R ChinaDalian Univ Technol, Sch Math Sci, Dalian 116024, Peoples R China
Feng, Erbao
Zhang, Jielin
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Dalian Univ Technol, Sch Math Sci, Dalian 116024, Peoples R ChinaDalian Univ Technol, Sch Math Sci, Dalian 116024, Peoples R China
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Dipartimento di Matematica e Fisica, Università Roma Tre, L.go S.L. Murialdo 1, RomeDipartimento di Matematica e Fisica, Università Roma Tre, L.go S.L. Murialdo 1, Rome