1. The Structure of Hopf Algebras with a Weak Projection

   • Peter Schauenburg

   OriginalPaper Pages: 187 - 211

2. Borel Subalgebras Redux with Examples from Algebraic and Quantum Groups

   • Brian Parshall
   • Leonard Scott
   • Jian-pan Wang

   OriginalPaper Pages: 213 - 257

3. Skew Group Rings which are Semi-Hereditary Orders and Prüfer Orders in Simple Artinian Rings

   • Hidetoshi Marubayashi
   • Zhong Yi

   OriginalPaper Pages: 259 - 275

4. Decomposition Numbers and Canonical Bases

   • Bernard Leclerc

   OriginalPaper Pages: 277 - 287

5. Spin Representations and Powers of 2

   • Christine Bessenrodt
   • Jørn B. Olsson

   OriginalPaper Pages: 289 - 300