Necessary conditions for double summability factor theorem

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Savaş E.

Miskolc Mathematical Notes, cilt.11, sa.2, ss.183-190, 2010 (SCI-Expanded, Scopus)

  • Yayın Türü: Makale / Tam Makale
  • Cilt numarası: 11 Sayı: 2
  • Basım Tarihi: 2010
  • Doi Numarası: 10.18514/mmn.2010.251
  • Dergi Adı: Miskolc Mathematical Notes
  • Derginin Tarandığı İndeksler: Science Citation Index Expanded (SCI-EXPANDED), Scopus
  • Sayfa Sayıları: ss.183-190
  • Anahtar Kelimeler: absolute summability factors, doubly triangular summability
  • Açık Arşiv Koleksiyonu: AVESİS Açık Erişim Koleksiyonu
  • İstanbul Ticaret Üniversitesi Adresli: Evet

Özet

We obtain necessary conditions for the series ΣΣcmn, which is absolutely summable of order k by a doubly triangular matrix method A, to be such that ΣΣcmnλmn is absolutely summable of order k by a doubly triangular matrix B. © 2010 Miskolc University Press.