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    Stably Unital

    Definition

    A local Banach algebra A is stably unital if the collection M_∞(A) of square infinite-dimensional matrices with entries in A has an approximate identity consisting of idempotents.

    Related terms

    algebra | analytic function | approximate identity | Banach algebra | completion | involution | local Banach algebra | normed space | positive element | subalgebra | unital

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