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Vol. 61 No. 10 (2009)

Published: 25.10.2009

Research articles

Refinement of a Hardy–Littlewood–Pólya-type inequality for powers of self-adjoint operators in a Hilbert space

R. O. Bilichenko, V. F. Babenko

1299-1305
- PDF (Russian)
- Springer
Schur convexity and Schur multiplicative convexity for a class of symmetric functions with applications

Xia Wei-feng

1306-1318
- PDF
- Springer
Betweenness relation and isometric imbeddings of metric spaces

A. A. Dovgoshei, D. V. Dordovskii

1319-1328
- PDF (Russian)
- Springer
On extension of some generalizations of quasiconformal mappings to a boundary

T.V. Lomako

1329-1337
- PDF (Russian)
- Springer
On reduction of block matrices in a Hilbert space

P. V. Omel’chenko

1338-1347
- PDF (Ukrainian)
- Springer
Trigonometric and orthoprojection widths of classes of periodic functions of many variables

A. S. Romanyuk, V. S. Romanyuk

1348-1366
- PDF (Russian)
- Springer
On the integral characterization of some generalized quasiregular mappings and the significance of the conditions of divergence of integrals in the geometric theory of functions

E. A. Sevost'yanov

1367-1380
- PDF (Russian)
- Springer
On some generalizations of nearly normal subgroups

M. M. Piskun, N. N. Semko

1381-1395
- PDF (Ukrainian)
- Springer
Normal and tangential geodesic deformations of the surfaces of revolution

Yu. S. Fedchenko

1396-1402
- PDF (Ukrainian)
- Springer
Order equalities for some functionals and their application to the estimation of the best $n$ -term approximations and widths

A. L. Shydlich

1403-1423
- PDF (Ukrainian)
- Springer
Unitarization of representations of a partially ordered set associated with a graph $\tilde{E}_6$

D. Yu. Yakymenko

1424-1433
- PDF (Russian)
- Springer

Short communications

Boundedness of multilinear singular integral operators on the homogeneous Morrey–Herz spaces

Jianglong Wu

1434-1440
- PDF
- Springer