Necessary conditions for absolute double matrix summability factors

Savaş E., Rhoades B.

Periodica Mathematica Hungarica, cilt.62, sa.2, ss.121-126, 2011 (SCI-Expanded) identifier

  • Yayın Türü: Makale / Tam Makale
  • Cilt numarası: 62 Sayı: 2
  • Basım Tarihi: 2011
  • Doi Numarası: 10.1007/s10998-011-6121-9
  • Dergi Adı: Periodica Mathematica Hungarica
  • Derginin Tarandığı İndeksler: Science Citation Index Expanded (SCI-EXPANDED), Scopus
  • Sayfa Sayıları: ss.121-126
  • Anahtar Kelimeler: absolute summability factors, doubly triangular summability
  • Uşak Üniversitesi Adresli: Hayır

Özet

We obtain necessary conditions for a doubly triangular matrix A to have the property that a double series ΣΣ λmnbmn is summable {pipe}A{pipe}k whenever the series ΣΣbmn is bounded {pipe}A{pipe}k. © 2011 Akadémiai Kiadó, Budapest, Hungary.