International Journal of Mathematics and Mathematical Sciences
Volume 21 (1998), Issue 2, Pages 369-374

Angular estimations of certain integral operators

Nak Eun Cho, In Hwa Kim, and Ji A Kim

Department of Applied Mathematics, Pukyong National University, Pusan 608-737, Korea

Received 1 April 1996; Revised 30 September 1996

Copyright © 1998 Nak Eun Cho et al. This is an open access article distributed under the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.


The object of the present paper is to derive some argument properties of certain integral operators. Our results contain some interesting corollaries as the special cases.