用初等方法加强Bourgain-Kontorovich定理
A reinforcement of the Bourgain-Kontorovich's theorem by elementary methods
摘要:
最近(2011年),Bourgain和Kontorovich证明了关于这个猜想的几个新定理。其中最简单的一个定理是,满足Zaremba猜想且A=50的数集在$\N.$中有正比例。这个定理的证明比较复杂,涉及到谱理论。本文仅用初等方法证明了A=13时的相同定理。
英文摘要:
Recently (in 2011) several new theorems concerning this conjecture were proved by Bourgain and Kontorovich. The easiest of them states that the set of numbers satisfying Zaremba's conjecture with A=50 has positive proportion in $\N.$ The proof of this theorem is rather complicated and refers to the spectral theory. In this paper,using only elementary methods, the same theorem is proved with A=13 .
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