The Hopf Algebra of ($q$-)Multiple Polylogarithms with Non-positive Arguments: Table 1

Kurusch Ebrahimi-Fard, Dominique Manchon, Johannes Singer
2016 International mathematics research notices  
We consider multiple polylogarithms in a single variable at non-positive integers. Defining a connected graded Hopf algebra, we apply Connes' and Kreimer's algebraic Birkhoff decomposition to renormalize multiple polylogarithms at non-positive integer arguments, which satisfy the shuffle relation. The q-analogue of this result is as well presented, and compared to the classical case.
doi:10.1093/imrn/rnw128 fatcat:tvu2gg3i4jhdbi4lbqpvcaxxua