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Sets of Generators of a Commutative and Associative Algebra(1)
Published online by Cambridge University Press: 20 November 2018
Abstract
Let A be a finite dimensional commutative and associative algebra with identity, over a field K. We assume also that A is generated by one element and consequently, isomorphic to a quotient algebra of the polynomial algebra K[X]. If A=K[a] and bi=fi(A), fi(X) ∊ K[X], 1≤i≤r we find necessary and sufficient conditions which should be satisfied by fi(X) in order that A = K[b1, …, br].
The result can be stated as a theorem about matrices. As a special case we obtain a recent result of Thompson [4].
In fact this last result was established earlier by Mirsky and Rado [3]. I am grateful to the referee for supplying this reference.
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- Copyright © Canadian Mathematical Society 1971
Footnotes
The preparation of this paper was supported in part by National Research Council Grant A-5285.