1. Hidden symmetry breaking and the Haldane phase inS=1 quantum spin chains

   • Tom Kennedy
   • Hal Tasaki

   OriginalPaper Pages: 431 - 484

2. Determinants, finite-difference operators and boundary value problems

   • Robin Forman

   OriginalPaper Pages: 485 - 526

3. Error bound for the Hartree-Fock energy of atoms and molecules

   • Volker Bach

   OriginalPaper Pages: 527 - 548

4. Two-dimensional Lorentz-Weyl anomaly and gravitational Chern-Simons theory

   • A. H. Chamseddine
   • J. Fröhlich

   OriginalPaper Pages: 549 - 562

5. Chern-Simons-Witten invariants of lens spaces and torus bundles, and the semiclassical approximation

   • Lisa C. Jeffrey

   OriginalPaper Pages: 563 - 604

6. Non-commutative spheres

   • Ola Bratteli
   • Akitaka Kishimoto

   OriginalPaper Pages: 605 - 624

7. Complex quantum groups and their quantum enveloping algebras

   • Bernhard Drabant
   • Michael Schlieker
   • Bruno Zumino

   OriginalPaper Pages: 625 - 633

8. Vector fields on complex quantum groups

   • Chryss Chryssomalakos
   • Bernhard Drabant
   • Bruno Zumino

   OriginalPaper Pages: 635 - 646

9. Semi-infinite Weil complex and the Virasoro algebra

   • Boris Feigin
   • Edward Frenkel

   Erratum Pages: 647 - 648