====== TTP99-08 Harmonic Polylogarithms ======
 
 
   <hidden TTP99-08  Harmonic Polylogarithms > The harmonic polylogarithms (hpl's) are introduced. They are a 
 generalization of Nielsen's polylogarithms, satisfying a product algebra 
 (the product of two hpl's is in turn a combination of hpl's) 
 and forming a set closed under the transformation of the arguments 
 \( x=1/z \) and \( x=(1-t)/(1+t) \). The coefficients of their expansions 
 and their Mellin transforms are harmonic sums.
 </hidden>
|**E. Remiddi and J.A.M. Vermaseren**  | 
|**  Int. J. Mod. Phys.  A15 725 2000  **  |
| {{preprints:1999:ttp99-08.pdf|PDF}} {{preprints:1999:ttp99-08.ps|PostScript}} [[http://arxiv.org/abs/hep-ph/9905237|arXiv]]   |
| |