ε-orthogonality preserving pairs of mappings on Hilbert C*-modules
عنوان مقاله: ε-orthogonality preserving pairs of mappings on Hilbert C*-modules
شناسه ملی مقاله: JR_JART-10-2_005
منتشر شده در در سال 1401
شناسه ملی مقاله: JR_JART-10-2_005
منتشر شده در در سال 1401
مشخصات نویسندگان مقاله:
A. Sahleh - Department of Mathematic, Faculty of Mathematical Sciences, University of Guilan, Rasht, Iran.
F. Olyani Nezhad - Department of Pure Mathematics, Faculty of Mathematical Sciences, University of Guilan, Rasht, Iran
خلاصه مقاله:
A. Sahleh - Department of Mathematic, Faculty of Mathematical Sciences, University of Guilan, Rasht, Iran.
F. Olyani Nezhad - Department of Pure Mathematics, Faculty of Mathematical Sciences, University of Guilan, Rasht, Iran
Let \mathcal{A} be a standard C^{*} -algebra. In this paper, we will study the continuity of \varepsilon -orthogonality preserving mappings between Hilbert \mathcal{A} -modules. Moreover, we will show that a local mapping between Hilbert \mathcal A -modules is \mathcal A -linear. Furthermore, we will prove that for a pair of nonzero \mathcal A -linear mappings T,S:E\longrightarrow F , between Hilbert \mathcal A -modules, satisfying \varepsilon -orthogonality preserving property, there exists \gamma \in \mathbb{C} ,\begin{align*} \Vert \langle T(x), S(y) \rangle-\gamma \langle x, y \rangle\Vert \leq \varepsilon \Vert T\Vert \Vert S\Vert \Vert x\Vert \Vert y \Vert, \quad x, y \in E.\end{align*}Our results generalize the known ones in the context of Hilbert spaces.
کلمات کلیدی: ε-orthogonality preserving mappings, local mappings, Hilbert C*-modules
صفحه اختصاصی مقاله و دریافت فایل کامل: https://civilica.com/doc/2026917/