Inequalities of Fejer Type Related to Generalized Convex Functions

Main Article Content

S. Mohammadi Aslani, M. Rostamian Delavar, S. M. Vaezpour

Abstract

This paper deals with some Fejer type inequalities related to (η1, η2)-convex functions. In fact the difference between the right and middle part of Fejer inequality is estimated without using Hölder's inequality when the absolute value of the derivative of considered function is (η1, η2)-convex. Furthermore we give two estimation results when the derivative of considered function is bounded and satisfies a Lipschitz condition.

Article Details

References

  1. A. Ben-Israel and B. Mond, What is invexity?, J. Aust. Math. Soc., Ser. B. 28 (1986) 1-9.
  2. S. S. Dragomir and R. P. Agarwal, Two inequalities for differentiable mappings and applications to special means of real numbers and to trapezoidal formula, Appl. Math. Lett., 11 (1998) 91-95.
  3. M. Eshaghi Gordji, S. S. Dragomir and M. Rostamian Delavar, An inequality related to η-convex functions (II), Int. J. Nonlinear Anal. Appl., 6(2) (2016) 26-32.
  4. M. Eshaghi Gordji, M. Rostamian Delavar and M. De La Sen, On φ-convex functions, J. Math. Inequal., 10(1) (2016) 173-183.
  5. L. Fejer, Uber die fourierreihen, II, Math. Naturwise. Anz Ungar. Akad. Wiss. 24 (1906) 369-390.
  6. M.A. Hanson and B. Mond, Convex transformable programming problems and invexity, J. Inf. Optim. Sci., 8 (1987) 201-207.
  7. W. Jeyakumar, Strong and weak invexity in mathematical programming, Eur. J. Oper. Res., 55 (1985) 109-125.
  8. M. Latif and S. S. Dragomir, New Inequalities of Hermite-Hadamard and Fej ´ er Type Preinvexity, J. Comput. Anal. Appl., 19(1) (2015), 725-739.
  9. A. W. Robert and D. E. Varbeg, Convex functions, Academic Press, (1973).
  10. M. Rostamian Delavar and S.S. Dragomir, On η-convexity, Math. Inequal. Appl., 20 (2017) 203-216.
  11. M. Rostamian Delavar and M. De La Sen, Some generalizations of Hermite-Hadamard type inequalities, SpringerPlus, (2016) 5:1661.
  12. M. Z. Sarikaya, On new Hermite Hadamard Fej ´ er type integral inequalities, Stud. Univ. Babes-Bolyai Math. 57(3) (2012) 377-386.