Zobrazeno 1 - 10
of 86
pro vyhledávání: '"Yu. K. Dem'yanovich"'
Publikováno v:
WSEAS TRANSACTIONS ON SYSTEMS AND CONTROL. 17:527-534
In this paper, we have developed a new approach to the local improvement of an approximate solution which has been obtained with the finite element method. The proposed improvement is adaptive, and it minimizes the energy functional. The discussed al
Autor:
Yu. K. Dem’yanovich
Publikováno v:
Journal of Mathematical Sciences. 267:338-361
Autor:
Yu. K. Dem’yanovich
Publikováno v:
Journal of Mathematical Sciences. 262:262-274
Autor:
Yu. K. Dem’yanovich
Publikováno v:
Journal of Mathematical Sciences. 261:393-409
Autor:
Yu. K. Dem’yanovich
Publikováno v:
Journal of Mathematical Sciences. 257:624-651
We obtain an estimate for the convergence rate of approximation of functions on a differentiable manifold We consider two approaches to approximation of such functions. The first is based on approximate relations for the manifold and is independent o
Autor:
A. Yu. Altynova, A. D. Satanovskiy, A. N. Terekhov, A. A. Babushkin, Yu. K. Dem’yanovich, I. G. Burova
Publikováno v:
International Journal of Circuits, Systems and Signal Processing. 15:836-846
In some cases, there are problems associated with the compression and enlargement of images. The use of splines is quite effective in some cases. In this paper, a new image compression algorithm is presented. The features of increasing the size of an
Autor:
Yu. K. Dem’yanovich
Publikováno v:
WSEAS TRANSACTIONS ON MATHEMATICS. 20:62-73
The purpose of this work is to obtain an effective evaluation of the speed of convergence for multidimensional approximations of the functions define on the differential manifold. Two approaches to approximation of functions, which are given on the m
Autor:
Yu. K. Dem’yanovich
Publikováno v:
International Journal of Circuits, Systems and Signal Processing. 15:72-79
The adaptive approximations for some characteristic of random functions defined on arbitrary irregular grids are discussed in this paper. The mentioned functions can be examined as flows of random real values associated with an irregular grid. This p
Autor:
Yu. K. Dem’yanovich
Publikováno v:
Journal of Mathematical Sciences. 251:797-813
We consider embedded Haar type spaces associated with cell subdivisions of a smooth manifold. We use an adaptivity criterion connected with a nonnegative set function possessing certain monotonicity properties. We propose an algorithm for constructin
Autor:
Yu. K. Dem’yanovich
Publikováno v:
Journal of Mathematical Sciences. 251:615-634
We consider wavelet decompositions of Haar type spaces on arbitrary nonuniform grids by methods of the nonclassical theory of wavelets. The number of nodes of the original (nonuniform) grid can be arbitrary, and the main grid can be any subset of the