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        CD(4) has bounded width

        Author
        Carvalho, Catarina
        Dalmau, Víctor
        Marković, Petar
        Maróti, Miklós
        Attention
        2299/9616
        Abstract
        We prove that the constraint languages invariant under a short sequence of J\'onsson terms (containing at most three non-trivial ternary terms) are tractable by showing that they have bounded width. This improves the previous result by Kiss and Valeriote and presents some evidence that the Larose-Zadori conjecture holds in the congruence-distributive case.
        Publication date
        2009
        Published in
        Algebra Universalis
        Published version
        https://doi.org/10.1007/s00012-009-2113-5
        Other links
        http://hdl.handle.net/2299/9616
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