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Abstract and Applied Analysis
Volume 2012 (2012), Article ID 904272, 13 pages
doi:10.1155/2012/904272
Sandwich-Type Theorems for a Class of Multiplier Transformations Associated with the Noor Integral Operators
1Department of Applied Mathematics, Pukyong National University, Busan 608-737, Republic of korea
2Department of Mathematics, COMSATS Institute of Information Technology, Islamabad 44000, Pakistan
Received 23 September 2011; Accepted 4 November 2011
Academic Editor: Muhammad Aslam Noor
Copyright © 2012 Nak Eun Cho and Khalida Inayat Noor. 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.
Abstract
We obtain some subordination- and superordination-preserving properties for a class of multiplier transformations associated with Noor integral operators defined on the space of normalized analytic functions in the open unit disk. The sandwich-type theorems for these transformations are also considered.