#####
Séminaire Lotharingien de Combinatoire, B08a (1984), 6
pp.

[Formerly: Publ. I.R.M.A. Strasbourg, 1984, 229/S-08, p.
5-10.]

# Marilena Barnabei

# Compositional Inversion of Triangular Sets of Series

**Abstract.**
A Lagrange-type inversion formula for triangular *P*-sets
of formal Laurent series in infinitely many variables
is derived in this paper. The result is
completely characteristic-free.

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