Volume 11, Issue 1 Lin Xin Li Xiaoxue A reciprocal sum related to the Riemann ζ-function Downloads Abstract PDF Full article PDF DOI { copied = true; setTimeout(() => copied = false, 2000) })" :aria-label="copied ? 'DOI copied' : 'Copy DOI'" :title="copied ? 'Copied' : 'Copy DOI'" > Find all available articles from these authors Lin Xin Li Xiaoxue Find more articles with the same keywords Riemann zeta-function inequality function [x] computational formula elementary method Find more articles with the same subject classes 11B83 11M06