指数周期与o-极小性
Exponential periods and o-minimality
AI总结:
本文证明指数周期的实虚部可由o-极小结构中可定义集合的体积表示,并定义朴素指数周期,揭示周期理论与o-极小结构的联系。
摘要:
设$\alpha\in \mathbb{C}$为一个指数周期。我们证明$\alpha$的实部和虚部(在符号意义下)等于由$\mathbb{Q}$、实指数函数以及${\sin}|_{[0,1]}$生成的o-极小结构中可定义集合的体积。这是普通周期精确刻画的一个较弱类比,普通周期是指其实部和虚部(在符号意义下)等于$\mathbb{Q}$-半代数集合的体积的数。此外,我们定义了朴素指数周期的概念,并使用上同调方法将其与现有概念进行比较。这指出了周期理论与o-极小结构之间的联系。
英文摘要:
Let $α\in \mathbb{C}$ be an exponential period. We show that the real and imaginary part of $α$ are up to signs volumes of sets definable in the o-minimal structure generated by $\mathbb{Q}$, the real exponential function and ${\sin}|_{[0,1]}$. This is a weaker analogue of the precise characterisation of ordinary periods as numbers whose real and imaginary part are up to signs volumes of $\mathbb{Q}$-semi-algebraic sets. Furthermore, we define a notion of naive exponential periods and compare it to the existing notions using cohomological methods. This points to a relation between the theory of periods and o-minimal structures.
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。