Summability factor theorems for triangular matrices
Journal of Computational Analysis and Applications, cilt.9, sa.3, ss.319-336, 2007 (SCI-Expanded, Scopus)
- Yayın Türü: Makale / Tam Makale
- Cilt numarası: 9 Sayı: 3
- Basım Tarihi: 2007
- Dergi Adı: Journal of Computational Analysis and Applications
- Derginin Tarandığı İndeksler: Science Citation Index Expanded (SCI-EXPANDED), Scopus
- Sayfa Sayıları: ss.319-336
- Anahtar Kelimeler: Absolute summability, Summability factor
- Uşak Üniversitesi Adresli: Hayır
Özet
We obtain necessary and sufficient conditions for the series Σa n summable |A| to imply that Σanλn is summable |B|k, and for the series Σan summable |A|k to imply that Σanλn is summable |B|, k ≥ 1 where A and B are lower triangular matrices. COPYRIGHT 2007 EUDOXUS PRESS ,LLC.