Some differential subordination and superordination properties of symmetric analytic functions involving Noor integral operator

Authors

  • Ali Muhammad Professor in Mathematics , Department of Basic Sciences University of Engineering and Technology Peshawar Pakistan
  • Amjad Ullah Khattak Professor in the Department of Electrical Engineering, University of Engineering and Technology Peshawar.

Keywords:

Analytic functions, Convex functions, Symmetric functions, Differential subordination and superordination, Noor integral operator

Abstract

In this paper, we obtain some interesting properties of differential subordination and superordination for the classes of symmetric functions analytic in the unit disc, by applying Noor integral operator. We investigate several sandwich theorems on the basis of this theory.

Author Biographies

  • Ali Muhammad, Professor in Mathematics , Department of Basic Sciences University of Engineering and Technology Peshawar Pakistan
    Professor in Mathematics , Department of Basic Sciences University of Engineering and Technology Peshawar Pakistan
  • Amjad Ullah Khattak, Professor in the Department of Electrical Engineering, University of Engineering and Technology Peshawar.
    Professor in the Department of Electrical Engineering, University of Engineering and Technology Peshawar

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Published

2012-11-07

Issue

Vol. 67 No. 2 (2012)

Section

Articoli

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