Some pseudovariety joins involving locally trivial semigroups and groups

In this paper, we present the computation of some pseudovariety joins of the form LI v H v V where LI is the pseudovariety of locally trivial semigroups and H is any pseudovariety of groups. Similar results are obtained for the pseudovarieties K, of semigroups in which idempotents are left zeros, and its dual D, in the place of LI.FCT through the Centro de Matemática da Universidade do MinhoEuropean Community Fund FEDE