Issue 68

March 25 - 28, 2012, Domaine Saint-Jacques, Ottrott

Preface

[B68a] Sergey Kitaev and Jeffrey Remmel

Quadrant Marked Mesh Patterns in Alternating Permutations (20 pp.)

[B68b] Filippo Disanto

Unbalanced Subtrees in Binary Rooted Ordered and Un-ordered Trees (14 pp.)

[B68c] Gérard H. E. Duchamp, Nguyen Hoang-Nghia and Adrian Tanasa

A Word Hopf Algebra Based on the Selection/Quotient Principle (13 pp.)