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Revista Colombiana de Matemáticas

versión impresa ISSN 0034-7426

Rev.colomb.mat. v.41 n.1 Bogotá ene./jun. 2007

 

Ostrowski, Grüss, Cebysev type inequalities for functions whose second derivatives belong to Lp(a, b) and whose modulus of second derivatives are convex

Desigualdades del tipo Ostrowski, Grüss, Cebysev para funciones cuya segunda derivada pertenece a Lp(a, b) y cuyo módulo de segunda derivada es convexo

ARIF RAFIQ1, FAROOQ AHMAD2

1COMSATS Institute of Information Technology, Department of Mathematics, Technology Plot 30, H-8/1, Islamabad 44000, Pakistaná.
E-mail: arafiq@comsats.edu.pk
2Bahauddin Zakariya University, Centre for Advanced Studies in Pure and Applied Mathematics, Multan 60800, Pakistaná.
E-mail: farooqgujar@gmail.com


Abstract

Ostrowski, Grüss, Cebysev type inequalities involving functions whose second derivatives belong to Lp(a,b) and whose modulus of second derivatives are convex are established. The results provide better bounds than those currently available in the literature.

Key words: Ostrowski Grüss Cebysev inequalities, modulus of second derivative convex, convex function.


2000 Mathematics Subject Classification. Primary: 65C10. Secondary: 65A12.

Resumen

Se establecen desigualdades de tipo Ostrowski, Grüss, Cebysev que comprenden funciones cuyas segundas derivadas pertenecen a Lp(a,b) y cuyos módulos de segundas derivadas son convexos. Los resultados obtenidos proporcionan mejores cotas que las actualmente disponibles en la literatura.

Palabras clave: Inecuaciones de Ostrowski Grüss Cebysev, modulos convexos de segunda derivada, función convexa.


Texto completo disponible en PDF


References

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(Recibido en agosto de 2006. Aceptado en marzo de 2007)

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