On the Euler method of summability and concerning Tauberian theorems
Makaleler > Tam Makale · 2021
Yazarlar: SEFA ANIL SEZER, İbrahim ÇANAK
Cumhuriyet Science Journal, Diğer Kurumların Hakemli Dergileri, Uluslararası, Scopus, 2021, cilt 42, ss 141-144
DOI: 10.17776/csj.834216
Özet
For any two regular summability methods (U) and (V), the condition under which V-limx_n=λ implies U-limx_n=λ is called a Tauberian condition and the corresponding theorem is called a Tauberian theorem. Usually in the theory of summability, the case in which the method U is equivalent to the ordinary convergence is taken into consideration. In this paper, we give new Tauberian conditions under which ordinary convergence or Cesàro summability of a sequence follows from its Euler summability by means of the product theorem of Knopp for the Euler and Cesàro summability methods.