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Vol. 66 No. 6 (2014)

Published: 25.06.2014

Research articles

Trigonometric Widths of the Nikol’skii–Besov Classes in the Lebesgue Space with Mixed Norm

G. Akishev

723–732
- PDF (Russian)
- Springer
The Dirichlet Problem with Laplacian with Respect to a Measure in the Hilbert Space

Yu. V. Bogdanskii, Ya. Yu. Sanzharevskii

733–739
- PDF (Russian)
- Springer
Jackson-Type Inequalities for the Special Moduli of Continuity on the Entire Real Axis and the Exact Values of Mean $ν$ - Widths for the Classes of Functions in the Space $L_2 (ℝ)$

S. B. Vakarchuk

740–766
- PDF (Russian)
- Springer
$I-n$ -Coherent Rings, $I-n$ -Semihereditary Rings, and $I$ -Regular Rings

Zhu Zhanmin

767–786
- PDF
- Springer
Asymptotic Expansion of the Moments of Correlogram Estimator for the Random-Noise Covariance Function in the Nonlinear Regression Model

O. V. Ivanov, K. K. Moskvychova

787–805
- PDF (Ukrainian)
- Springer
Estimation of the Remainder for the Interpolation Continued C-Fraction

M. M. Pahirya

806–814
- PDF (Ukrainian)
- Springer
Sharpening of the Explicit Lower Bounds for the Order of Elements in Finite Field Extensions Based on Cyclotomic Polynomials

R. B. Popovych

815–825
- PDF
- Springer
Some Approximation Properties of Szasz–Mirakyan–Bernstein Operators of the Chlodovsky Type

E. Simsek, E. Tunç

826–834
- PDF
- Springer
Approximations by Fourier Sums on the Sets $L^{ψ} L^{P(∙)}$

S. O. Chaichenko

835–846
- PDF (Russian)
- Springer

Short communications

Determination of the Coefficient of a Semilinear Parabolic Equation for a Boundary-Value Problem with Nonlinear Boundary Condition

A. Ya. Akhundov

847–852
- PDF
- Springer
On Invariant Subspaces in Weighted Hardy Spaces

V. M. Dilnyi

853–857
- PDF (Ukrainian)
- Springer
$s$ -Conditionally Permutable Subgroups and $p$ -Nilpotency of Finite Groups

X. H. Li, Y. Xu

858–864
- PDF
- Springer