2020•Al-Qadisiyah Journal Of Pure ScienceOpen access

New and Extended Results On Fourth-Order Differential Subordination for Univalent Analytic Functions

Waggas Galib Atshan, Ali Hussein Battor, Abeer Farhan Abaas, Georgia Irina Oros

Abstract

In this paper, we introduce new concept that is fourth-order differential subordination and superordination associated with linear operator for univalent analytic functions in open unit disk. Here, we extended some lemmas. Also some interesting new results are obtained.

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Key concepts: Subordination (linguistics), Unit disk, Analytic function, Univalent function, Differential (mechanical device), Mathematics, Differential operator, Order (exchange)