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Lexicographic effect algebras

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Abstract

We investigate a class of effect algebras that can be represented in the form \({\Gamma (H \overrightarrow{\times} G}\), (u, 0)), where \({H \overrightarrow{\times} G}\) means the lexicographic product of an Abelian unital po-group (H, u) and an Abelian directed po-group G. We study conditions when an effect algebra is of this form. Fixing a unital po-group (H, u), the category of strongly (H, u)-perfect effect algebras is introduced and it is shown that it is categorically equivalent to the category of directed po-groups with interpolation. We prove some representation theorems of lexicographic effect algebras, including a subdirect product representation by antilattice lexicographic effect algebras.

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Correspondence to Anatolij Dvurečenskij.

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Presented by S. Pulmannova.

This work was supported by the Slovak Research and Development Agency under contract APVV-0178-11, grant VEGA No. 2/0059/12 SAV, CZ.1.07/2.3.00/20.0051, and GAČR 15-15286S.

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Dvurečenskij, A. Lexicographic effect algebras. Algebra Univers. 75, 451–480 (2016). https://doi.org/10.1007/s00012-016-0374-3

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  • DOI: https://doi.org/10.1007/s00012-016-0374-3

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