Английская Википедия:Cohen–Hewitt factorization theorem

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In mathematics, the Cohen–Hewitt factorization theorem states that if <math> V </math> is a left module over a Banach algebra <math> B </math> with a left approximate unit <math> (u_{i})_{i \in I} </math>, then an element <math> v </math> of <math> V </math> can be factorized as a product <math> v = b w </math> (for some <math> b \in B </math> and <math> w \in V </math>) whenever <math> \displaystyle \lim_{i \in I} u_{i} v = v </math>. The theorem was introduced by Шаблон:Harvs and Шаблон:Harvs.

References

Шаблон:Functional analysis

Шаблон:Analysis-stub