arXivDaily arXiv每日学术速递 周一至周五更新
arXiv 2011.06384math.CA
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关于$q$ -差分方程广义幂级数解的收敛性

On the convergence of generalized power series solutions of $q$-difference equations

Renat Gontsov, Irina Goryuchkina, Alberto Lastra

摘要:

给出了代数$q$ -差分方程的广义形式幂级数解收敛的一个充分条件.主要结果依赖于这样一个系列的(复)幂指数半群的几何性质。该性质对应于不出现小约数现象的情况。文中还举例说明了所得到的充分条件可以应用或不可以应用的情况。

英文摘要:

A sufficient condition for the convergence of a generalized formal power series solution to an algebraic $q$-difference equation is provided. The main result leans on a geometric property related to the semi-group of (complex) power exponents of such a series. This property corresponds to the situation in which the small divisors phenomenon does not arise. Some examples illustrating the cases where the obtained sufficient condition can be or cannot be applied are also depicted.

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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