2014•FilomatOpen access

Differential subordination and superordination results for certain subclasses of analytic functions by the technique of admissible functions

R. Jayasankar, Maslina Darus, S. Sivasubramanian

Abstract

By investigating appropriate classes of admissible functions, various Differential subordination and superordination results for analytic functions in the open unit disk are obtained using Cho-Kwon-Srivastava operator. As a consequence of these results, Sandwich-type results are also obtained.

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Key concepts: Subordination (linguistics), Mathematics, Unit disk, Analytic function, Differential (mechanical device), Operator (biology), Differential operator, Pure mathematics