题 目:Egyptian fractions
主讲人:陈永高 教授
单 位:南京师范大学
时 间:2026年1月24日 16:00
地 点:南研教室
摘 要:Egyptian fractions have been extensively studied. In this talk, we will talk about the related progressions on Egyptian fractions. For any given positive integer k, let T(k) denote the number of representations of one as the sum of k Egyptian fractions with distinct odd denominators. It is clear that T(k)=0 if k is even. In this talk, we give the lower and upper bounds of T(k) for k being odd. We also talk about representations of one as the sum of Egyptian fractions for which all denominators have the given prime factors only.
简 介:陈永高,南京师范大学教授、博士生导师,长期从事数论研究和高校教学工作。曾获全国优秀教师称号,被评为江苏省普通高等学校优秀青年骨干教师、江苏省“333 高层次人才培养工程”中青年科技领军人才。曾获国务院政府特殊津贴,钟家庆数学奖,江苏省科技进步奖二等奖、三等奖。连续多年主持国家自然科学基金面上项目,在American Journal of Mathematics, Journal of the London Mathematical Society等国内外学术刊物上发表学术论文200多篇。陈永高教授多次担任国际数学奥林匹克中国队领队、副领队,中国数学奥林匹克委员会副主席。