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Article

Keywords:
partially ordered group; multilattice group; distributivity; retract; direct product
Summary:
Subgroups of a directed distributive multilattice group $G$ are characterized which are direct factors of $G$. The main result is formulated in Theorem 2.
References:
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[3] McAlister D. B.: On multilattice groups. Proc. Cambridge Philos. Soc. 61 (1965), 621-638. MR 0175819 | Zbl 0135.06203
[4] Birkhoff G.: Lattice Theory. Amer. Math. Soc. Colloquium . XXV (1948), Publ. revised edition,, New York. MR 0029876 | Zbl 0033.10103
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