報(bào) 告 人:方金輝 教授
報(bào)告題目:On representation functions
報(bào)告時(shí)間:2023年9月21日(周四)上午08:30
報(bào)告地點(diǎn):靜遠(yuǎn)樓1506學(xué)術(shù)報(bào)告廳
主辦單位:數(shù)學(xué)與統(tǒng)計(jì)學(xué)院、數(shù)學(xué)研究院、科學(xué)技術(shù)研究院
報(bào)告人簡介:
方金輝,南京師范大學(xué)教授、博士生導(dǎo)師,主要研究加法補(bǔ)集、子集和、表示函數(shù)等數(shù)論問題,先后主持國家自然科學(xué)青年基金、面上項(xiàng)目,在Acta Arith., J. Number Theory, J. Combin. Theory Ser. A, Combinatorica 等雜志上發(fā)表論文50余篇。
報(bào)告摘要:
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, including our recent progress on the density of bounded bases.