On the optimality of singular controls in time-lag systems L. T. Ashchepkov OriginalPaper Pages: 825 - 831
The convergence of the double Fourier series of continuous functions M. BakhbukhE. M. Nikishin OriginalPaper Pages: 832 - 839
Cohomologies of algebras with simple systems of generators L. N. Ivanovskii OriginalPaper Pages: 864 - 874
Frequency conditions for the existence of nontrivial periodic solutions in autonomous systems G. A. Leonov OriginalPaper Pages: 884 - 889
Limits on the gradient of a harmonic function at the boundary of a domain I. D. Maergoiz OriginalPaper Pages: 890 - 903
Asymptotics of the coefficients in the Levi-Wiener theorems on absolutely convergent trigonometric series B. A. Rogozin OriginalPaper Pages: 917 - 923
Boundary value problems for a multiplicatively generated quasidifferentiation operator V. Ya. Sikiryavyi OriginalPaper Pages: 924 - 929
Characteristic subalgebras of relatively free algebras K. K. AndreevD. G. Shabel'nikova Notes Pages: 941 - 942
On the construction of smooth quasiconformal automorphisms of the plane mapping a given smooth curve onto a circle V. A. Danilov OriginalPaper Pages: 946 - 949
Center of a group with one defining relation in the variety of 2-stage solvable groups E. I. Timoshenko OriginalPaper Pages: 954 - 957
On finitude of the basis of identities of certain varieties of groups G. V. Sheina OriginalPaper Pages: 958 - 961
