Journal of Classical Analysis · Volume 23, Issue 1 Series involving polygamma functions and certain variant Euler harmonic sums 23-03 Pages 19-36 DOI 10.7153/jca-2024-23-03 Downloads Short PDF Full PDF PNG Authors Anthony Sofo Junesang Choi Keywords Euler harmonic sums variant Euler harmonic sums polygamma functions harmonic numbers extended harmonic numbers mathematical constants Subject classes 11M06 11M35 26B15 33B15 42A70 65B10