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     Research Journal of Applied Sciences, Engineering and Technology


A Generalized Extension of the Hadamard-type Inequality for a Convex Function Defined on the Minimum Modulus of Integral Functions

Md Mainul Islam
Department of Mathematics and Statistics, Bangladesh University of Business and Technology, Bangladesh
Research Journal of Applied Sciences, Engineering and Technology  2014  5:595-599
http://dx.doi.org/10.19026/rjaset.8.1010  |  © The Author(s) 2014
Received: February 18, 2014  |  Accepted: May ‎08, ‎2014  |  Published: August 05, 2014

Abstract

In this study we extend the Hadamard’s type inequalities for convex functions defined on the minimummodulus of integral functions in complex field. Firstly, using the Principal of minimum modulus theorem we derive that m (r) is continuous and decreasing function in R+. Secondly, we introduce a function t (r) and derived that t (r) and lnt (r) are continuous and convex in R+. Finally we derive two inequalities analogous to well known Hadamard’s inequality by using elementary analysis.

Keywords:

Analytic function, Hermite-Hadamard integral inequality , integral function , principal of maximum and minimum modulus,


References

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Competing interests

The authors have no competing interests.

Open Access Policy

This article is distributed under the terms of the Creative Commons Attribution 4.0 International License (http://creativecommons.org/licenses/by/4.0/), which permits unrestricted use, distribution, and reproduction in any medium, provided you give appropriate credit to the original author(s) and the source, provide a link to the Creative Commons license, and indicate if changes were made.

Copyright

The authors have no competing interests.

ISSN (Online):  2040-7467
ISSN (Print):   2040-7459
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