... q)Remarks. The specialization of equation (2) to q = 1 appears as [Ste, Proposition2.2(b)], and the special case of (2) in which W is of type A nappears in slightlydifferent form as [DF, equation ... odd-labelled edges of the Coxeter diagram.As a consequence, there is a universal tuple of additive statistics n1,n2, whosemultivariate distribution specializes to that of any other additive ... D´esarm´enien and D. Foata, The signed Eulerian numbers,Disc.Math99 (1992), 49-58.[GG] A. M. Garsia and I. Gessel, Permutation statistics and partitions,Adv.inMath.31 (1979),288-305.[GR] G. Gasper and...