Biordered sets
Published • Mar 12, 1992
NobleIDNI0P48W06R81S80
Authors:
Peter M. Higgins
Abstract
Abstract In Section 1.5 the notion of the biordered set of a semigroupS was introduced, along with the associated idea of a sandwich set of an ordered pair of idempotents,S(e,f). That an element may always be drawn fromS(e,f) in caseS is regular was used implicitly in Theorem 1.4.17, and sandwich se...
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