Articles with "zero maps" as a keyword



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Approximately order zero maps between C⁎-algebras

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Published in 2021 at "Journal of Functional Analysis"

DOI: 10.1016/j.jfa.2021.109025

Abstract: We investigate linear operators between C$^\ast$-algebras which approximately preserve involution and orthogonality, the latter meaning that for some $\varepsilon>0$ we have $\|\phi(x)\phi(y)\|\leq\varepsilon\|x\|\|y\|$ for all positive $x,y$ with $xy=0$. We establish some structural properties of such… read more here.

Keywords: zero maps; maps algebras; algebras approximately; order zero ... See more keywords
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Completely positive maps of order zero on pro-πΆβˆ—-algebras

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Published in 2020 at "Forum Mathematicum"

DOI: 10.1515/forum-2020-0012

Abstract: Abstract We extend the definition of order zero maps to the setting of pro-C*{C^{*}}-algebras and generalize structure theorems of order zero maps between C*{C^{*}}-algebras to strongly bounded order zero maps between pro-Cβˆ—{C^{\ast}}-algebras. An application to… read more here.

Keywords: zero maps; order; pro algebras; positive maps ... See more keywords