Stably Unital

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

See also

Algebra, Analytic Function, Approximate Identity, Banach Algebra, Completion, Involution, Local Banach Algebra, Normed Space, Positive Element, Subalgebra, Unital

This entry contributed by Christopher Stover

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References

Blackadar, B. K-Theory for Operator Algebras. New York: Cambridge University Press, 1998.

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Cite this as:

Weisstein, Eric W., with contributions by Christopher Stover. "Stably Unital." From MathWorld--A Wolfram Resource. https://mathworld.wolfram.com/StablyUnital.html

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