Issue 49

October 20 - 23, 2002, Haus Schönenberg, Ellwangen

Preface                         Photo Gallery

[B49a] Toufik Mansour and Julian West

Avoiding 2-letter Signed Patterns (11 pp.)

[B49b] Francesco Brenti (Expository Paper)

Kazhdan-Lusztig polynomials: History, Problems, and Combinatorial Invariance (30 pp.)

[B49c] Abdelmalek Abdesselam (Expository Paper)

Feynman Diagrams in Algebraic Combinatorics (45 pp.)

[B49d] Steen Ryom-Hansen

Littelmann's Refined Demazure Character Formula Revisited (10 pp.)

[B49e] Gérald Ksavrelof and Jiang Zeng

Two Involutions for Signed Excedance Numbers (8 pp.)

[B49f] Bernd Fiedler

On the Symmetry Classes of the First Covariant Derivatives of Tensor Fields (22 pp.)

[B49g] Roman König

Endliche Hüllensysteme und ihre Implikationenbasen (46 pp.)

[B49h] Emanuele Munarini and Norma Zagaglia Salvi

Binary Strings Without Zigzags (15 pp.)

[B49z] Pierre Auger, Gilbert Labelle and Pierre Leroux (Semi-expository Paper and Software Presentation)

Computing The Molecular Expansion Of Species With The Maple Package Devmol (34 pp.)