Issue 58

March 18 - 21, 2007, Domaine des Hautannes, Saint Germain au Mont d'Or

Preface

[B58a] Dominique Foata and Guo-Niu Han

Decreases and Descents in Words (17 pp.)

[B58b] Toufik Mansour and Yidong Sun

Excedance Numbers for Permutations in Complex Reflection Groups (7 pp.)

[B58c] Frédéric Chapoton (Expository Paper)

Operads and Algebraic Combinatorics of Trees (27 pp.)

[B58d] Markus Kuba

On Evaluations of Infinite Double Sums and Tornheim's Double Series (11 pp.)

[B58e] Ning Jia and Ezra Miller

Duality of Antidiagonals and Pipe Dreams (6 pp.)

[B58f] Sankaran Viswanath

Kostka-Foulkes Polynomials for Symmetrizable Kac-Moody Algebras (20 pp.)