Bessel and Gr&#252;ss Type Inequalities in Inner Product Modules over Banach <inline-formula> <graphic file="1029-242X-2011-562923-i1.gif"/></inline-formula>-Algebras

<p/> <p>We give an analogue of the Bessel inequality and we state a simple formulation of the Gr&#252;ss type inequality in inner product <inline-formula> <graphic file="1029-242X-2011-562923-i2.gif"/></inline-formula>-modules, which is a refinement of it....

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Bibliographic Details
Main Authors: Dragomir SS, Ghazanfari AG
Format: Article
Language:English
Published: SpringerOpen 2011-01-01
Series:Journal of Inequalities and Applications
Online Access:http://www.journalofinequalitiesandapplications.com/content/2011/562923
Description
Summary:<p/> <p>We give an analogue of the Bessel inequality and we state a simple formulation of the Gr&#252;ss type inequality in inner product <inline-formula> <graphic file="1029-242X-2011-562923-i2.gif"/></inline-formula>-modules, which is a refinement of it. We obtain some further generalization of the Gr&#252;ss type inequalities in inner product modules over proper <inline-formula> <graphic file="1029-242X-2011-562923-i3.gif"/></inline-formula>-algebras and unital Banach <inline-formula> <graphic file="1029-242X-2011-562923-i4.gif"/></inline-formula>-algebras for <inline-formula> <graphic file="1029-242X-2011-562923-i5.gif"/></inline-formula>-seminorms and positive linear functionals.</p>
ISSN:1025-5834
1029-242X