Banach function algebras with dense invertible group
Banach function algebras with dense invertible group
复制标题
具有稠密可逆群的 Banach 函数代数
DOI:
10.1090/s0002-9939-07-09044-2
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发表时间:
2004
影响因子:
2.3
通讯作者:
J. Feinstein
中科院分区:
文献类型:
--
作者:
H. Dales;J. Feinstein
In 2003 Dawson and Feinstein asked whether or not a Banach function algebra with dense invertible group can have a proper Shilov boundary. We give an example of a uniform algebra showing that this can happen, and investigate the properties of such algebras. We make some remarks on the topological stable rank of commutative, unital Banach algebras. In particular, we prove that $ \mathrm{tsr}(A) \geq \mathrm{tsr}(C(\Phi_A))$ whenever $ A$ is approximately regular.