|
|
Proceedings of the Yerevan State University, series Physical and Mathematical Sciences, 2012, Issue 2, Pages 22–28
(Mi uzeru132)
|
|
|
|
Mathematics
On one spectrum of universality for Walsh system
M. A. Nalbandyan Chair of Higher Mathematics (Department of Physics) YSU, Armenia
Abstract:
In the present work it is shown that the set $D=\left\{\displaystyle\sum_{i=0}^{\infty}\delta_i2^{N_i} :\delta_i=0,1\right\}$ for every sequence $N_0<N_1\ldots<N_i\ldots$ of natural numbers can be changed into the set of the form $\Lambda=\left\{k+o(\omega(k)):k\in D\right\}$ , where $\omega(k)$ is an arbitrary, tending to infinity at $k\to+\infty$ sequence, such that $\Lambda$ is the spectrum of universality for Walsh system.
Keywords:
Walsh system, universal series, representation theorems, representations by subsystems.
Received: 10.05.2011 Accepted: 20.02.2012
Citation:
M. A. Nalbandyan, “On one spectrum of universality for Walsh system”, Proceedings of the YSU, Physical and Mathematical Sciences, 2012, no. 2, 22–28
Linking options:
https://www.mathnet.ru/eng/uzeru132 https://www.mathnet.ru/eng/uzeru/y2012/i2/p22
|
|