Cui-Fang Sun

collaborators

3 papers

math.NT2020

On partitions of $Z_{m}$ with the same representation function

Cui-Fang Sun, Meng-Chi Xiong

For any positive integer $m$ , let $Z_{m}$ be the set of residue classes modulo $m$ . For $A \subseteq Z_{m}$ and $n \in Z_{m}$ , let $R_{A}(\overl…

math.NT2020

On a problem of partitions of $Z_{m}$ with the same representation functions

Cui-Fang Sun, Meng-Chi Xiong

For any positive integer $m$ , let $Z_{m}$ be the set of residue classes modulo $m$ . For $A \subseteq Z_{m}$ and $n \in Z_{m}$ , let representatio…

math.NT2019

On odd deficient-perfect numbers with four distinct prime divisors

Cui-Fang Sun, Zhao-Cheng He

For a positive integer $n$ , let $σ (n)$ denote the sum of the positive divisors of $n$ . Let $d$ be a proper divisor of $n$ . We call $n$ a deficient-perfect number if $σ (n) = 2 n - d$ . In…

On partitions of Zm​ with the same representation function

On a problem of partitions of Zm​ with the same representation functions

On odd deficient-perfect numbers with four distinct prime divisors

On partitions of $Z_{m}$ with the same representation function

On a problem of partitions of $Z_{m}$ with the same representation functions