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Vol. 61 No. 11 (2009)

Published: 25.11.2009

Research articles

Nonsymmetric approximations of classes of periodic functions by splines of defect 2 and Jackson-type inequalities

V. F. Babenko, N. V. Parfinovych

1443-1454
- PDF (Russian)
- Springer
Equivalence of closed 1-forms on surfaces with edge

T. V. Budnyts'ka, O. O. Prishlyak

1455-1473
- PDF (Ukrainian)
- Springer
Best orthogonal trigonometric approximations of the classes $B^{Ω}_{p,θ}$ of periodic functions of many variables

S. P. Voitenko

1473-1484
- PDF (Ukrainian)
- Springer
On removable sets of solutions of second-order elliptic and parabolic equations in nondivergent form

T. S. Gadjiev, V. A. Mamedova

1485-1496
- PDF
- Springer
Approximation of (ψ, β)-differentiable functions by Poisson integrals in the uniform metric

T. V. Zhyhallo, Yu. I. Kharkevych

1497-1515
- PDF (Ukrainian)
- Springer
Asymptotic solutions of a system of differential equations with multiple turning point

I. H. Klyuchnyk

1516-1530
- PDF (Ukrainian)
- Springer
$(o)$ -Topology in *-algebras of locally measurable operators

M. A. Muratov, V. I. Chilin

1531-1540
- PDF (Russian)
- Springer
Method of local linear approximation in the theory of bounded solutions of nonlinear differential equations

V. Yu. Slyusarchuk

1541-1556
- PDF (Ukrainian)
- Springer
On one atypical scheme of application of the second Lyapunov method

S. P. Sosnitskii

1557-1563
- PDF (Ukrainian)
- Springer
Boundary-value problems for the wave equation with Lévy Laplacian in the Gâteaux class

M. N. Feller

1564-1574
- PDF (Russian)
- Springer

Short communications

On the stable range of matrix rings

B. V. Zabavskii, V. M. Petrichkovich

1575-1578
- PDF (Ukrainian)
- Springer
Growth of generalized Temperley–Lieb algebras connected with simple graphs

M. V. Zavodovskii, Yu. S. Samoilenko

1579-1585
- PDF (Russian)
- Springer