On a Universal Solution to the Reflection Equation J. DoninP. P. KulishA. I. Mudrov OriginalPaper Pages: 179 - 194
On Generalized Relativistic Billiards in External Force Fields M. V. DeryabinL. D. Pustyl'nikov OriginalPaper Pages: 195 - 207
Symmetric Products, Permutation Orbifolds and Discrete Torsion P. Bantay OriginalPaper Pages: 209 - 218
Rank-One Singular Perturbations with a Dual Pair of Eigenvalues Sergio AlbeverioMykola DudkinVolodymyr Koshmanenko OriginalPaper Pages: 219 - 228
Differential Calculus on Quantum Homogeneous Spaces István HeckenbergerStefan Kolb OriginalPaper Pages: 255 - 264