A note on strong Nörlund summability (Q1916824)

The authors use different definitions of strong Nörlund summabilities \([N,p_n,q]\) with index \(q\), \(q>0\), due to D. Borwein and F. P. Cass, to Sirvastava, and to B. Kuttner and B. Thorpe, and establish two types of theorems. They also obtain one theorem which gives an equivalence between the definitions of Borwein and Cass and of Srivastava, under certain conditions on \(\{p_n\}\).