Yufeng Wu

activity

20232026

collaborators

4 papers

math.CA2026

Intersections and Minkowski Sums of Four-Corner Cantor Dusts with the Unit Circle

Jiangtao Li, Zhao Shen, Yufeng Wu

For $0 < λ < 1/2$ , let $K_{λ}$ be the attractor of the iterated function system ${λ x, λ x + 1 - λ}$ , and put $C_{λ} = K_{λ} \times K_{λ}$ . We study the intersection \[ E_λ=C_λ\cap S^1 \] and the Min…

math.CA2026

Dimension drop for intersections of Cantor sets

Lai Jiang, Bing Li, Ruofan Li +1

Let $E \subset R$ be a self-similar set generated by a homogeneous iterated function system $Φ$ with contraction ratio $ρ \in (0, 1)$ . Assume that $Φ$ satisfies the open set…

math.NT2024

Multiplicative Diophantine approximation with restricted denominators

Bing Li, Ruofan Li, Yufeng Wu

Let ${a_{n}}_{n \in N}$ , ${b_{n}}_{n \in N}$ be two infinite subsets of positive integers and $ψ : N \to R_{> 0}$ be a positive function. We completely…

math.NT2023

Zero-full law for well approximable sets in missing digit sets

Bing Li, Ruofan Li, Yufeng Wu

Let $b \geq 3$ be an integer and $C (b, D)$ be the set of real numbers in $[0, 1]$ whose base $b$ expansion only consists of digits in a set $D \subseteq {0, ..., b - 1}$ . We study how…