1. The Cauchy Problem for Partial Difference Equations

   • Jiří Gregor

   OriginalPaper Pages: 247 - 263

2. Contributions to a Rigidity Conjecture

   • Maria Carvalho

   OriginalPaper Pages: 265 - 295

3. The Geometry of Lightlike Hypersurfaces of the de Sitter Space

   • Maks A. Akivis
   • Vladislav V. Goldberg

   OriginalPaper Pages: 297 - 328

4. Proof of the Mixing Theorem for Statistical Systems in Classical Physics

   • Ernst Ruch
   • Werner Stulpe

   OriginalPaper Pages: 329 - 352

5. The Riemann Function for the Third-Order One-Dimensional Pseudoparabolic Equation

   • Kamil Oruçoğlu
   • Seyidali S. Akhiev

   OriginalPaper Pages: 353 - 370