Proceedings of the Indian Academy of Sciences: Mathematical Sciences, cilt.113, sa.3, ss.243-250, 2003 (SCI-Expanded)
We obtain a set of necessary and sufficient conditions for |N̄, pn|k to imply |N̄, qn|s for 1 < k ≤ s < ∞. Using this result we establish several inclusion theorems as well as conditions for the equivalence of |N̄, pn|k and |N̄, qn|s.