1. Operator Ergodic Theorems for Actions of Free Semigroups and Groups

   • A. I. Bufetov

   OriginalPaper Pages: 239 - 251

2. Theta Function Solutions of the Schlesinger System and the Ernst Equation

   • D. A. Korotkin
   • V. B. Matveev

   OriginalPaper Pages: 252 - 264

3. A Generalization of the Second Quantization Method to the Case of Special Tensor Products of Fock Spaces and Quantization of Free Energy

   • V. P. Maslov

   OriginalPaper Pages: 265 - 275

4. Special Points of Surfaces in the Three-Dimensional Projective Space

   • D. A. Panov

   OriginalPaper Pages: 276 - 287

5. Lagrange Intersections in a Symplectic Space

   • P. E. Pushkar'

   OriginalPaper Pages: 288 - 292

6. Conditions for the Similarity of All Minimal Passive Scattering Systems with Given Scattering Matrix

   • D. Z. Arov

   OriginalPaper Pages: 293 - 295

7. One More Kind of the Classical Yang-Baxter Equation

   • I. Z. Golubchik
   • V. V. Sokolov

   OriginalPaper Pages: 296 - 298

8. A Problem of Integral Geometry Related to a Triple of Grassmann Manifolds

   • M. I. Graev

   OriginalPaper Pages: 299 - 301

9. Holomorphic Functions of a Basis of a Nilpotent Lie Algebra

   • A. A. Dosiev

   OriginalPaper Pages: 302 - 304

10. The Negative Spectrum of a Class of Two-Dimensional Schrödinger Operators with Potentials Depending Only on Radius

    • A. Laptev

    OriginalPaper Pages: 305 - 307

11. Completeness Theorems for Systems of Differential Equations

    • M. M. Malamud
    • L. L. Oridoroga

    OriginalPaper Pages: 308 - 310

12. When a Sum of Idempotents or Projections is a Multiple of the Identity

    • V. I. Rabanovich
    • Yu. S. Samoilenko

    OriginalPaper Pages: 311 - 313