地点：行健楼学术活动室526
摘要：For a nonempty set $A$ of integers and every integer $n$, let $r_{A}(n)$ be the number of representations of $n$ of the form $n=a+a'$, where $a\le a'$ and $a, a'\in A$, and $d_{A}(n)$ be the number of $(a,a')$ with $a,a'\in A$ such that $n=a-a'$. In this talk, we will give a review of our results on representation functions.
