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arXiv · 2109.09867

Stable rank for inclusions of Banach algebras

Masaru Nagisa·Hiroyuki Osaka·Raisei Tomita
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Abstract

We give a formula for the stable rank of inclusions of unital Banach algebras in the sense of finite Watatani index. As an application we show that the stable rank of $\ell^1$-algebras of Disk algebras by any action of finite groups is 2.

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Masaru Nagisa, Hiroyuki Osaka, Raisei Tomita. 2021-09-20. Stable rank for inclusions of Banach algebras. https://arxiv.org/abs/2109.09867

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