Title：Some properties of harmonic numbers

Abstract：Let Hn be the nth harmonic number and vn be its denominator.It is well known that Hn is not an integer for every integer n ≥ 2. In this talk, we give several properties of Hn. In particular, the   set of positive integers n with vn = vn+1 has density one.

Speaker：Bing-Ling Wu

Nanjing University of Posts and Telecommunications

                 Doctor Wu graduated from Nanjing Normal University in June 2019.

Date：19:00pm-20:30pm 2021-12-2（Thursday）

Venue: Tencent Conference No. 701-744-345

Organizer：School of Mathematical Science

Students and teachers who are interested in Number Theory are welcome.