论文标题

一般而言,毒液套件是Cantor套装

Diophantine sets in general are Cantor sets

论文作者

Argentieri, Fernando

论文摘要

令$γ\ in(0; \ frac {1} {2}),τ\ geq 1 $ $,并定义“ $γ,τ$ diophantine set” as:$ d_ d_ d_ {γ{γ,τ}:= \ \ \ {α\ in(0; 1):| qa) q \ in \ bbb {n} \},\ qquad || x ||:= \ inf_ {p \ in \ bbb {z}} | x-p |。 $$在本文中,我们研究了这些集合的拓扑结构,我们表明,对于大$τ$,几乎所有$γ> 0 $,$ d_ {γ,τ} $是cantor套装。

Let $γ\in(0;\frac{1}{2}),τ\geq 1$ and define the "$γ,τ$ Diophantine set" as: $$D_{γ,τ}:=\{α\in (0;1): ||qα||\geq\fracγ{q^τ}\quad\forall q\in\Bbb{N}\},\qquad||x||:=\inf_{p\in\Bbb{Z}}|x-p|. $$ In this paper we study the topology of these sets and we show that, for large $τ$ and for almost all $γ>0$, $D_{γ,τ}$ is a Cantor set.

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