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arXiv 1011.0933math.DSmath-phmath.CAmath.MP
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具有Bryuno频率向量的任意拟周期扰动的响应解

Response solutions for arbitrary quasi-periodic perturbations with Bryuno frequency vector

Livia Corsi, Guido Gentile

摘要:

研究了一维实解析系统响应解的存在性问题,该系统由一个受小的准周期强迫的旋转体组成。我们证明了至少有一个响应的解决方案总是存在的,没有任何假设的强迫除了小和解析。这加强了文献中的结果,其中一般的非简并条件假设。证明是基于一个图解形式主义,并依赖于重整化群技术,利用正式的类比与问题的量子场论;一个至关重要的作用是发挥显着的身份之间的类图。

英文摘要:

We study the problem of existence of response solutions for a real-analytic one-dimensional system, consisting of a rotator subjected to a small quasi-periodic forcing. We prove that at least one response solution always exists, without any assumption on the forcing besides smallness and analyticity. This strengthens the results available in the literature, where generic non-degeneracy conditions are assumed. The proof is based on a diagrammatic formalism and relies on renormalisation group techniques, which exploit the formal analogy with problems of quantum field theory; a crucial role is played by remarkable identities between classes of diagrams.

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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