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- Title
A companion of Ostrowski's inequality for complex functions defined on the unit circle and applications.
- Authors
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.
- Subjects
MATHEMATICAL inequalities; STOCHASTIC partial differential equations; QUADRATURE domains; NUMBER theory; APPROXIMATION theory
- Publication
ScienceAsia, 2018, Vol 44, Issue 1, p54
- ISSN
1513-1874
- Publication type
Article
- DOI
10.2306/scienceasia1513-1874.2018.44.054