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Morita invariants for semigroups with local units |
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| Authors: | Valdis Laan László Márki |
| Affiliation: | 1. Institute of Mathematics, University of Tartu, ülikooli 18, 50090, Tartu, Estonia 2. Alfréd Rényi Institute of Mathematics, Hungarian Academy of Sciences, P.O. Box 127, 1364, Budapest, Hungary |
| Abstract: | In this paper we study Morita invariants for strongly Morita equivalent semigroups with local units of various kinds. Among others we prove that, under a certain condition of this kind, congruence lattices are preserved by strong Morita equivalence. |
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