Discrete and continuous dynamics of real 3-dimensional nilpotent polynomial vector fields

IF 0.5 4区 数学 Q3 MATHEMATICS
Álvaro Castañeda, Salomón Rebollo-Perdomo
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引用次数: 0

Abstract

The aim of this work is to present general properties of the discrete and continuous dynamical systems induced by a large class of 3-dimensional nilpotent polynomial vector fields of arbitrary degree. In the discrete case, we prove that each dynamical system has a unique fixed point and there are no 2-cycles. Moreover, either the fixed point is a global attractor or there exists a 3-cycle which is not a repeller. In the continuous setting, we prove that each dynamical system is polynomially integrable. Particularly, it is proved that the global dynamics of some low degree vector fields is completely understood and that there are invariant surfaces foliated by periodic orbits. As far as we know, this last property has not been shown before in the nilpotent context. We achieve our results by using the approach of polynomial automorphisms to obtain simplified conjugated dynamical systems, instead of considering only the usual linear transformations. Finally, we point out some similarities shared by the discrete and continuous dynamical systems, and we formulate some open questions motivated by our results, which are related with the Markus–Yamabe conjecture and the problem of planar limit cycles.

Abstract Image

实三维幂零多项式向量场的离散和连续动力学
本文的目的是给出由一大类任意次的三维幂零多项式向量场诱导的离散和连续动力系统的一般性质。在离散情况下,我们证明了每个动力系统有唯一不动点且不存在2环。而且,不动点要么是一个全局吸引点,要么存在一个不排斥的3环。在连续环境下,我们证明了每一个动力系统是多项式可积的。特别是证明了一些低次向量场的整体动力学是完全被理解的,并且证明了周期轨道的不变量面是存在的。据我们所知,这最后一个性质以前还没有在幂零上下文中显示过。我们使用多项式自同构的方法来得到简化的共轭动力系统,而不是只考虑通常的线性变换。最后,我们指出了离散动力系统与连续动力系统的一些相似之处,并根据我们的结果提出了一些与Markus-Yamabe猜想和平面极限环问题有关的开放性问题。
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来源期刊
Archiv der Mathematik
Archiv der Mathematik 数学-数学
CiteScore
1.10
自引率
0.00%
发文量
117
审稿时长
4-8 weeks
期刊介绍: Archiv der Mathematik (AdM) publishes short high quality research papers in every area of mathematics which are not overly technical in nature and addressed to a broad readership.
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