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arXiv 1906.03528math.DSmath.CA
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周期轨道族:闭1-形式和整体可连续性

Families of periodic orbits: closed 1-forms and global continuability

Matthew D. Kvalheim, Anthony M. Bloch

摘要:

研究了一类依赖于参数的微分方程的周期轨道的整体延拓问题,假设存在满足某些性质的闭1-形式。我们首先将Alexander、Alligood、Mallet-Paret、Yorke等人的整体连续性理论推广到这种情况,提出了一个新的整体连续性概念和一个新的为这种情况量身定制的整体连续性定理。特别是,我们表明,这样的1-形式的存在,确保局部连续性的周期轨道意味着全球连续性。使用我们的一般理论,我们然后开发基于连续的技术来证明周期轨道的存在。与以前的工作相比,我们的结果的一个关键特征是,周期轨道的存在性可以被证明(i)没有找到捕获区域的动力学和(ii)没有建立一个先验的上界的轨道周期。我们用合成生物学文献的例子来说明这个理论。

英文摘要:

We investigate global continuation of periodic orbits of a differential equation depending on a parameter, assuming that a closed 1-form satisfying certain properties exists. We begin by extending the global continuation theory of Alexander, Alligood, Mallet-Paret, Yorke, and others to this situation, formulating a new notion of global continuability and a new global continuation theorem tailored for this situation. In particular, we show that the existence of such a 1-form ensures that local continuability of periodic orbits implies global continuability. Using our general theory, we then develop continuation-based techniques for proving the existence of periodic orbits. In contrast to previous work, a key feature of our results is that existence of periodic orbits can be proven (i) without finding trapping regions for the dynamics and (ii) without establishing a priori upper bounds on the periods of orbits. We illustrate the theory in examples inspired by the synthetic biology literature.

机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。

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