arXivDaily arXiv每日学术速递 周一至周五更新
arXiv 2202.12410math.FA
收藏

Banach空间上算子笔的本原方程的基本方程

The fundamental equations for inversion of operator pencils on Banach space

University of South Australia(南澳大学);University of Adelaide(阿德莱德大学)

Amie Albrecht, Phil Howlett, Charles Pearce

AI总结:

本文研究Banach空间上算子笔的本原方程,证明解析性与Laurent级数系数满足的基本方程的关系,并探讨其在谱分离性质中的应用。

摘要:

我们证明,线性算子笔的解析性在开放的环形区域上当且仅当Laurent级数的系数满足一组基本方程并且在几何上是有界的。我们的分析扩展了之前关于基本方程的工作,以包括解析具有孤立本质奇点的情况。我们为解析找到了闭式表达式,并利用基本方程在解析仅有有限个孤立奇点时建立关键的谱分离性质。最后我们显示,我们的结果也可以应用于多项式笔。

英文摘要:

We prove that the resolvent of a linear operator pencil is analytic on an open annulus if and only if the coefficients of the Laurent series satisfy a system of fundamental equations and are geometrically bounded. Our analysis extends earlier work on the fundamental equations to include the case where the resolvent has an isolated essential singularity. We find a closed form for the resolvent and use the fundamental equations to establish key spectral separation properties when the resolvent has only a finite number of isolated singularities. Finally we show that our results can also be applied to polynomial pencils.

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。

↑