Gelfand numbers of diagonal matrices

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Ismailov Z. I., Cona L., Cevik E. O.

HACETTEPE JOURNAL OF MATHEMATICS AND STATISTICS, vol.44, no.1, pp.75-81, 2015 (SCI-Expanded)

• Publication Type: Article / Article
• Volume: 44 Issue: 1
• Publication Date: 2015
• Doi Number: 10.15672/hjms.2015449111
• Journal Name: HACETTEPE JOURNAL OF MATHEMATICS AND STATISTICS
• Journal Indexes: Science Citation Index Expanded (SCI-EXPANDED), Scopus, TR DİZİN (ULAKBİM)
• Page Numbers: pp.75-81
• Karadeniz Technical University Affiliated: Yes

Abstract

In this work, a connection between Gelfand numbers of infinite diagonal matrix with linear bounded operator-elements in the direct sum of Banach spaces and its coordinate operators has been investigated.