On Some Reversible Cubic Systems

被引:3
|
作者
Arcet, Barbara [1 ]
Romanovski, Valery G. [1 ,2 ,3 ]
机构
[1] Univ Maribor, Ctr Appl Math & Theoret Phys, Maribor 2000, Slovenia
[2] Univ Maribor, Fac Elect Engn & Comp Sci, Maribor 2000, Slovenia
[3] Univ Maribor, Fac Nat Sci & Math, Maribor 2000, Slovenia
关键词
centers; reversibility; cubic systems; involution; limit cycles; CENTER-FOCUS PROBLEM; INTEGRABILITY;
D O I
10.3390/math9121446
中图分类号
O1 [数学];
学科分类号
0701 ; 070101 ;
摘要
We study three systems from the classification of cubic reversible systems given by Zoladek in 1994. Using affine transformations and elimination algorithms from these three families the six components of the center variety are derived and limit-cycle bifurcations in neighborhoods of the components are investigated. The invariance of the systems with respect to the generalized involutions introduced by Bastos, Buzzi and Torregrosa in 2021 is discussed. Computations are performed using the computer algebra systems Mathematica and Singular.
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页数:20
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