| Home  | About ScienceAsia  | Publication charge  | Advertise with us  | Subscription for printed version  | Contact us  
Editorial Board
Journal Policy
Instructions for Authors
Online submission
Author Login
Reviewer Login
Volume 44 Number 1
Volume 44 Number 1
Volume 43 Number 6
Volume 43 Number 5
Volume 43 Number 4
Volume 43 Number 3
Earlier issues
Volume 43 Number 6 Volume 44 Number 1 Volume 44 Number 1

previous article 1

Research articles

ScienceAsia 44(2018): 54-65 |doi: 10.2306/scienceasia1513-1874.2018.44.054


A companion of Ostrowski's inequality for complex functions defined on the unit circle and applications


Gang Li, Yue Luan, Jiangyong Yu*

 
ABSTRACT:     Some companions of Ostrowski's inequality for complex functions defined on the unit circle are proved. Our results in special cases not only recapture known results, but also give a smaller estimator than that of the known results. Applications to a composite quadrature rule and to functions of unitary operators in Hilbert spaces are also considered.

Download PDF

18 Downloads 71 Views


College of Mathematics and Statistics, Nanjing University of Information Science and Technology, Nanjing 210044, China

* Corresponding author, E-mail: yjyamxp@outlook.com

Received 3 Jul 2017, Accepted 15 Oct 2017