1. Symbolic dynamics in the neighborhood of degenerate homoclinic structures

   • V. G. Gruzdev
   • Yu. I. Neimark

   OriginalPaper Pages: 555 - 563

2. A projection-iteration method of constructing two-sided approximations of solutions of operator equations

   • I. N. Maiboroda

   OriginalPaper Pages: 564 - 571

3. Multifrequency oscillations of weakly nonlinear second-order systems

   • Yu. A. Mitropol'skii
   • A. M. Samoilenko

   OriginalPaper Pages: 572 - 586

4. Conditions foe self-adjointness of the Schrödinger operator with operator potential

   • M. Otelbaev

   OriginalPaper Pages: 586 - 592

5. Topological groups close to groups of rank 1

   • V. M. Poletskikh

   OriginalPaper Pages: 593 - 600

6. The problem of eigenvalues and “turning points” in the theory of systems of linear differential equations

   • N. A. Sotnichenko
   • S. F. Feshchenko

   OriginalPaper Pages: 600 - 609

7. Infinite-dimensional smooth symmetric power moment problem for nuclear spaces

   • S. N. Shifrin

   OriginalPaper Pages: 609 - 616

8. Intertwining operators for U(n, 1)

   • A. M. Gavrilik
   • A. U. Klimyk

   Brief Communications Pages: 617 - 620

9. Bounds of solutions of Cauchy's problem for second-order parabolic equations independent of dimension

   • Yu. L. Daletskii

   Brief Communications Pages: 620 - 624

10. Generalized piecewise-Hermitian interpolation

    • O. N. Litvin
    • V. V. Fed'ko

    Brief Communications Pages: 624 - 629

11. A certain problem of heat conduction containing a time derivative in the boundary condition

    • L. V. Lyubich

    Brief Communications Pages: 629 - 632

12. Oscillations of systems with impulsive action, with slowly varying parameters and with lag

    • Nguen Khak Lan

    Brief Communications Pages: 633 - 638

13. Representations of exponentially convex functions of an infinite number of variables

    • Nguen Fu Hi

    Brief Communications Pages: 639 - 644

14. Integration of a two-dimensional system with a turning point

    • I. I. Starun

    Brief Communications Pages: 645 - 648

15. Construction of the solution of a homogeneous linear system of differential equations with constant coefficients by a matrix method

    • Z. E. Filer

    Brief Communications Pages: 648 - 650

16. Invariance groups of certain equations of relativistic quantum mechanics

    • V. I. Fushchich
    • Yu. N. Segeda

    Brief Communications Pages: 650 - 654

17. Supplement to one theorem of S. Mandelbrojt

    • V. G. Khryptun

    Brief Communications Pages: 655 - 658

18. A theorem on the behavior at infinity of solutions of partial differential equations

    • N. N. Chaus

    Brief Communications Pages: 658 - 660

19. Yurii Dmitrievich Sokolov (on the eightieth anniversary of his birth)

    • Yu. A. Mitropol'skii
    • N. S. Kurpel'
    • V. N. Shevelo

    Chronicles Pages: 661 - 662