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Séminaire Lotharingien de Combinatoire, B58c (2007), 27 pp.

# Frédéric Chapoton

# Operads and Algebraic Combinatorics of Trees

**Abstract.**
This text is an introduction to operads from a combinatorial point
of view. We give the definition, several examples of operads and the
construction of a group from each operad.

Received: June 26, 2007.
Accepted: February 21, 2008.
Final Version: March 7, 2008.

The following versions are available: