Approximately $C^*$-inner product preserving mappings

dc.creatorChmielinski, Jacek
dc.creatorMoslehian, Mohammad Sal
dc.date2006-01-12
dc.date.accessioned2026-07-07T09:35:55Z
dc.date.available2026-07-07T09:35:55Z
dc.descriptionA mapping $f: {\mathcal M} \to {\mathcal N}$ between Hilbert $C^*$-modules approximately preserves the inner product if \[\|< f(x), f(y)> - < x, y> \| \leq ϕ(x, y),\] for an appropriate control function $ϕ(x,y)$ and all $x, y \in {\mathcal M}$. In this paper, we extend some results concerning the stability of the orthogonality equation to the framework of Hilbert $C^*$-modules on more general restricted domains. In particular, we investigate some asymptotic behavior and the Hyers--Ulam--Rassias stability of the orthogonality equation.
dc.description10 pages
dc.identifierhttps://arxiv.org/abs/math/0601276
dc.identifierhttp://arxiv.org/abs/math/0601276
dc.identifierBull. Korean Math. Soc. 45 (2008), no. 1, 157-167.
dc.identifier.urihttp://salesiana.dossiersoluciones.com/handle/123456789/159994
dc.subjectOperator Algebras
dc.subjectAnalysis of PDEs
dc.subjectFunctional Analysis
dc.subject39B52; 39B82; 46B99; 46L08
dc.titleApproximately $C^*$-inner product preserving mappings
dc.typetext

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