Best approximation of trigonometric series with coefficients satisfying some regularity conditions

Research output: Contribution to journalArticle

Abstract

Recently we have defined a new very large class of numerical sequences of monotone type, and now we prove two theorems utilizing the sequences of this class as the coefficients of the series Σ bn sin nx. The origin of these theorems goes back to A. A. KONYUSHKOV.

Original languageEnglish
Pages (from-to)285-292
Number of pages8
JournalPublicationes Mathematicae
Volume72
Issue number3-4
Publication statusPublished - Jun 19 2008

Keywords

  • Best approximation
  • Inequalities
  • Special monotone sequences

ASJC Scopus subject areas

  • Mathematics(all)

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