JOURNAL OF MATHEMATICAL ANALYSIS AND APPLICATIONS, cilt.276, sa.2, ss.924-929, 2002 (SCI-Expanded)
In this paper two theorems of Mazhar (Bull. Inst. Math. Acad. Sinica 25 (1997) 233-242) have been proved under weaker conditions by using a quasi beta-power increasing sequence instead of an almost increasing sequence. (C) 2002 Elsevier Science (USA). All rights reserved.