1. Preface

   • L. D. Faddeev

   EditorialNotes Pages: I - II

2. A non-arithmetic derivation of the Selberg trace formula

   • A. B. Venkov
   • V. L. Kalinin
   • L. D. Faddeev

   OriginalPaper Pages: 171 - 199

3. Bounds on the number of geodesics on the fundamental region of the modular group

   • S. N. Naboko

   OriginalPaper Pages: 199 - 202

4. Relativistic and Galilean-invariant classical mechanical systems

   • A. G. Reiman

   OriginalPaper Pages: 202 - 207

5. A characteristic of the Kirillov integral

   • M. A. Semenov-Tyan-Shanskii

   OriginalPaper Pages: 208 - 219

6. Hamiltonian systems connected with the Dirac equation

   • L. A. Takhtadzhyan

   OriginalPaper Pages: 219 - 228

7. The decomposition of a quasiregular representation of the Lie group by the orbit method

   • V. I. Shubov

   OriginalPaper Pages: 229 - 246