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2
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What is the generator of the disc algebra
The disc algebra, as a set, consists of the functions on the unit disc $D$, which are analytic on the interior of the disc and continuous on its boundary. Its addition and multiplication is obvious. ...
3
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Do non-commutative algebras with dense commutative subalgebras exist?
Let $A$ be a normed unital algebra. Suppose that $C\subseteq A$ is a commutative subalgebra which is dense in $A$.
I ask myself the following question:
Under the above assumptions, is $A$ necessarily ...
