1. Strings and Pions

   • A. A. Andrianov
   • D. Espriu

   OriginalPaper Pages: 745 - 756

2. Q-Operator and the Drinfeld Equation

   • A. A. Belavin
   • R. A. Usmanov

   OriginalPaper Pages: 757 - 764

3. Explicit Formulas for Generalized Action–Angle Variables in a Neighborhood of an Isotropic Torus and Their Application

   • V. V. Belov
   • S. Yu. Dobrokhotov
   • V. A. Maksimov

   OriginalPaper Pages: 765 - 791

4. Constructing Solutions for the Generalized Hénon–Heiles System Through the Painlevé Test

   • S. Yu. Vernov

   OriginalPaper Pages: 792 - 801

5. Commutation Relations in an Indefinite-Metric Space

   • Yu. S. Vernov
   • M. N. Mnatsakanova

   OriginalPaper Pages: 802 - 807

6. Coulomb Problem in a One-Dimensional Space with Constant Positive Curvature

   • L. G. Mardoyan
   • G. S. Pogosyan
   • A. N. Sissakian

   OriginalPaper Pages: 808 - 813

7. Integrability in String/Field Theories and Hamiltonian Flows in the Space of Physical Systems

   • A. D. Mironov

   OriginalPaper Pages: 814 - 827

8. Integral Representations for Correlation Functions of the XXZ Heisenberg Chain

   • N. A. Slavnov

   OriginalPaper Pages: 828 - 835

9. Modularity and Total Ellipticity of Some Multiple Series of Hypergeometric Type

   • V. P. Spiridonov

   OriginalPaper Pages: 836 - 848

10. Essential and Discrete Spectra of the Three-Particle Schrödinger Operator on a Lattice

    • S. N. Lakaev
    • M. É. Muminov

    OriginalPaper Pages: 849 - 871

11. Multipole Pseudopotential Method for Some Problems in Quantum Scattering

    • Yu. V. Zasorin

    OriginalPaper Pages: 872 - 880

12. Periodic Gibbs Measures for the Ising Model with Competing Interactions

    • Kh. A. Nazarov
    • U. A. Rozikov

    OriginalPaper Pages: 881 - 888

13. A Weakly Nonideal Bose Gas Model Leading to the Fountain Effect

    • V. P. Maslov

    OriginalPaper Pages: 889 - 892