Finite generation of congruence preserving functions
We investigate when the clone of congruence preserving functions is finitely generated. We obtain a full description for all finite p -groups, and for all finite algebras with Mal’cev term and simple congruence lattice. The characterization for p -groups allows a generalization to a large class of e...
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Veröffentlicht in: | Monatshefte für Mathematik 2016-09, Vol.181 (1), p.35-62 |
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Hauptverfasser: | , , |
Format: | Artikel |
Sprache: | eng |
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Online-Zugang: | Volltext |
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Zusammenfassung: | We investigate when the clone of congruence preserving functions is finitely generated. We obtain a full description for all finite
p
-groups, and for all finite algebras with Mal’cev term and simple congruence lattice. The characterization for
p
-groups allows a generalization to a large class of expansions of groups. |
---|---|
ISSN: | 0026-9255 1436-5081 |
DOI: | 10.1007/s00605-015-0833-5 |