1. On Error Estimates for the Trotter–Kato Product Formula

   • H. Neidhardt
   • V. A. Zagrebnov

   OriginalPaper Pages: 169 - 186

2. Tau Function Solutions to a q-Deformation of the KP Hierarchy

   • Plamen Iliev

   OriginalPaper Pages: 187 - 200

3. Universal Solutions of Quantum Dynamical Yang–Baxter Equations

   • D. Arnaudon
   • E. Buffenoir
   • Ph. Roche

   OriginalPaper Pages: 201 - 214

4. Orthogonality and Disjointness in Spaces of Measures

   • Paul Busch

   OriginalPaper Pages: 215 - 224

5. Essential Self-Adjointness of Dirac Operators Under an Integral Consition on the Potential

   • Hubert Kalf

   OriginalPaper Pages: 225 - 232

6. On the Virial Theorem for the Relativistic Operator of Brown and Ravenhall, and the Absence of Embedded Eigenvalues

   • A.A. Balinsky
   • W. D. Evans

   OriginalPaper Pages: 233 - 248

7. Interacting Singletons

   • Moshé Flato
   • Christian Frønsdal

   OriginalPaper Pages: 249 - 259