指数Riesz基、无理旋转的差异与BMO
Exponential Riesz bases, discrepancy of irrational rotations and BMO
摘要:
研究了频率属于“简单拟代数”的指数系统的基性质。我们证明了一个丢番图条件是这样一个系统是有限区间并上L^2中的Riesz基的充要条件。为了证明,我们扩展到BMO的凯斯滕定理的差异不合理的旋转圈。
英文摘要:
We study the basis property of systems of exponentials with frequencies belonging to 'simple quasicrystals'. We show that a diophantine condition is necessary and sufficient for such a system to be a Riesz basis in L^2 on a finite union of intervals. For the proof we extend to BMO a theorem of Kesten about the discrepancy of irrational rotations of the circle.
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。