Necessary conditions for absolute matrix summability methods


ÖZARSLAN H., Ozgen H. N.

BOLLETTINO DELLA UNIONE MATEMATICA ITALIANA, cilt.8, sa.3, ss.223-228, 2015 (ESCI) identifier

Özet

In this paper, we obtain necessary conditions in order that a series Sigma a(n) should be summable vertical bar B, q(n)vertical bar k whenever Sigma a(n) is summable vertical bar A, p(n)vertical bar(k). Some new results have also been obtained.