1. States on Orthomodular Posets of Decompositions

   • John Harding

   OriginalPaper Pages: 1061 - 1069

2. Theory of a Pair of Quantum Bits

   • Hans J. Kummer

   OriginalPaper Pages: 1071 - 1112

3. One-Parameter Inhomogeneous Differential Realizations and Boson–Fermion Realizations of the gl(2¦1) Superalgebra

   • Yong-Qing Chen

   OriginalPaper Pages: 1113 - 1119

4. Precanonical Quantum Gravity: Quantization Without the Space–Time Decomposition

   • Igor V. Kanatchikov

   OriginalPaper Pages: 1121 - 1149

5. Symmetry Reduction From Interactions to Particles

   • Heinrich Saller

   OriginalPaper Pages: 1151 - 1171

6. Proton Transport in Hydrogen-Bonded Chains in the Presence of an External Field

   • Yuan-Fa Cheng

   OriginalPaper Pages: 1173 - 1181

7. Autonomous Forms and Exact Solutions of Equations of Motion of Polytropic Gas

   • E. M. E. Zayed
   • Hassan A. Zedan

   OriginalPaper Pages: 1183 - 1196

8. Poincaré-Cartan Integral Variants and Invariants of Nonholonomic Constrained Systems

   • Y. X. Guo
   • M. Shang
   • F. X. Mei

   OriginalPaper Pages: 1197 - 1205

9. Erratum: Quantum Group Symmetry of the Hubbard Model

   • E. Ahmed
   • A. S. Hegazi

   OriginalPaper Pages: 1207 - 1207