Topological Algebra
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High Quality Content by WIKIPEDIA articles! In mathematics, a topological algebra A over a topological field K is a topological vector space together with a continuous multiplication cdot :Atimes A longrightarrow A (a,b)longmapsto acdot b that makes it an algebra over K. A unital associative topological algebra is a topological ring. An example of a topological algebra is the algebra C[0,1] of continuous real-valued functions on the closed unit interval [0,1], or more generally any Banach algebra.The term was coined by David van Dantzig; it appears in the title of his doctoral dissertation…mehr

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High Quality Content by WIKIPEDIA articles! In mathematics, a topological algebra A over a topological field K is a topological vector space together with a continuous multiplication cdot :Atimes A longrightarrow A (a,b)longmapsto acdot b that makes it an algebra over K. A unital associative topological algebra is a topological ring. An example of a topological algebra is the algebra C[0,1] of continuous real-valued functions on the closed unit interval [0,1], or more generally any Banach algebra.The term was coined by David van Dantzig; it appears in the title of his doctoral dissertation (1931).The natural notion of subspace in a topological algebra is that of a (topologically) closed subalgebra. A topological algebra A is said to be generated by a subset S if A itself is the smallest closed subalgebra of A that contains S. For example by the Stone Weierstrass theorem, the set {id[0,1]} consisting only of the identity function id[0,1] is a generating set of the Banach algebra C[0,1].