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The Singular Congruence and the Maximal Quotient Semigroup
Published online by Cambridge University Press: 20 November 2018
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It is a well known result (see [4, p. 108]) that if R is a ring and Q(R) its maximal right quotient ring, then Q(R) is (von Neumann) regular if and only if every large right ideal of R is dense. This condition is equivalent to saying that the singular ideal of R is zero. In this note we show that the condition loses its magic in the theory of semigroups.
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- Copyright © Canadian Mathematical Society 1972
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