$\mathrm{M}$-ideals: from Banach spaces to rings

David P. Blecher, Amartya Goswami

We introduce and investigate a class of ring ideals, termed ring $\mathrm{M}$-ideals, inspired by the Alfsen--Effros theory of $\mathrm{M}$-ideals in Banach spaces. We show that $\…