1. Singularities of Adelic Feynman Amplitudes

   • E. Yu. Lerner
   • M. D. Missarov

   OriginalPaper Pages: 97 - 111

2. Number Operator Algebras and Deformations of ε-Poisson Algebras

   • Fabien Besnard

   OriginalPaper Pages: 113 - 125

3. More Noncommutative 4-Spheres

   • Andrzej Sitarz

   OriginalPaper Pages: 127 - 131

4. Bounds on One-Dimensional Exchange Energies with Application to Lowest Landau Band Quantum Mechanics

   • Christian Hainzl
   • Robert Seiringer

   OriginalPaper Pages: 133 - 142

5. Hopf Solitons and Area-Preserving Diffeomorphisms of the Sphere

   • L. A. Ferreira
   • A. V. Razumov

   OriginalPaper Pages: 143 - 148

6. Jet Coordinates for Local BRST Cohomology

   • Friedemann Brandt

   OriginalPaper Pages: 149 - 159

7. A Suggestion for an Integrability Notion for Two-Dimensional Spin Systems

   • Harald Grosse
   • Karl-Georg Schlesinger

   OriginalPaper Pages: 161 - 167

8. On the Classification of Admissible Representations of the Virasoro Algebra

   • Jérôme Germoni

   OriginalPaper Pages: 169 - 177