与三角级数有关的小集合的注记
Remarks on small sets related to trigonometric series
摘要：
证明了N_0-集、Arbault集、N-集和伪Dirichlet集等几类集合在小规模加集下是闭的。
英文摘要：
We show that several classes of sets, like N_0-sets, Arbault sets, N-sets and pseudo-Dirichlet sets are closed under adding sets of small size.
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。
