Geodesic
Almost factorisable inverse semigroups
Glasgow mathematical journal, Tome 36 (1994) no. 1, pp. 97-111

Voir la notice de l'article provenant de la source Cambridge University Press

In [3], McAlister introduced a class of semigroups, called covering semigroups, which were shown to play an important role in the theory of E-unitary covers of semigroups. Strangely, this class of semigroups appears to have received little attention subsequently. It is the aim of this paper to rehabilitate them and to study their properties in more detail. As a first step, we have chosen to rename them almost factorisable semigroups, since they can be regarded as the semigroup analogues of factorisable inverse monoids. Before discussing the contents of this paper in more detail we recall some standard terminology. 
Lawson, M. V. Almost factorisable inverse semigroups. Glasgow mathematical journal, Tome 36 (1994) no. 1, pp. 97-111. doi: 10.1017/S0017089500030603
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