Advances in Difference Equations (Jun 2020)

On a unified integral operator for φ-convex functions

  • Young Chel Kwun,
  • Moquddsa Zahra,
  • Ghulam Farid,
  • Saira Zainab,
  • Shin Min Kang

DOI
https://doi.org/10.1186/s13662-020-02761-3
Journal volume & issue
Vol. 2020, no. 1
pp. 1 – 16

Abstract

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Abstract Integral operators have a very vital role in diverse fields of science and engineering. In this paper, we use φ-convex functions for unified integral operators to obtain their upper bounds and upper and lower bounds for symmetric φ-convex functions in the form of a Hadamard inequality. Also, for φ-convex functions, we obtain bounds of different known fractional and conformable fractional integrals. The results of this paper are applicable to convex functions.

Keywords