In this paper our aim is to present some subordination and superordination
results, by using an operator, which involves the normalized form of the
generalized Bessel functions of first kind. These results are obtained by
investigating some appropriate classes of admissible functions. We obtain also
some sandwich-type results and we point out various known or new special cases
of our main results.Comment: 15 pages, accepted in Bulletin of the Malaysian Mathematical Sciences
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