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Compact intersection property and description of congruence lattices. - MaRDI portal

Compact intersection property and description of congruence lattices. (Q2877058)

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scientific article; zbMATH DE number 6333332
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Compact intersection property and description of congruence lattices.
scientific article; zbMATH DE number 6333332

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    21 August 2014
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    congruence lattices
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    compact congruences
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    congruence-distributive varieties
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    Compact intersection property and description of congruence lattices. (English)
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    A variety of algebras \(\mathcal V\) is said to have the Compact Intersection Property (CIP) if the join semilattice of all compact congruences is closed with respect to intersections for each algebra in \(\mathcal V\). In the paper congruence lattices in locally finite congruence-distributive varieties are studied. The authors prove some general theorems yielding two types of characterization of the CIP for certain types of such varieties: via direct limits and via Priestley's duality.
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