Talk:Hopf algebra of permutations

Shuffle algebra
Is there a good description of the relationship between this topic and Shuffle algebra? Deltahedron (talk) 06:47, 1 April 2014 (UTC)

Notations
The algebra is denoted by *MPR* in the article but by *MR* in the commutative diagram. I suggest making notations consistent, in whatever way you prefer (I personally tend to denote the algebra by $$\operatorname{FQSym}$$). Darij (talk) 17:28, 26 April 2018 (UTC)