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Article type: Research Article
Authors: Šešelja, Branimir | Tepavčević, Andreja | Udovičić, Mirna
Affiliations: Department of Mathematics and Informatics, Faculty of Sciences, University of Novi Sad, Trg Dositeja Obradovića Novi Sad, Serbia | University of Tuzla, Faculty of Sciences, Mathematics Department, Univerzitetska, Tuzla, Bosnia and Herzegovina
Note: [] Corresponding author. Branimir Šešelja, Department of Mathematics and Informatics, Faculty of Sciences, University of Novi Sad, Trg Dositeja Obradovića 4, Novi Sad 21000, Serbia. E-mails: seselja@dmi.uns.ac.rs (Branimir Šešelja); andreja@dmi.uns.ac.rs (Andreja Tepavčević); mirnaudovicic@yahoo.com (Mirna Udovičić).
Abstract: Fuzzy (lattice valued) posets are investigated with the order being a fuzzy relation on a fuzzy set. In this framework, fuzzy chains and generally fuzzy lattices are investigated. These are applied to fuzzy lattice ordered subgroups of lattice ordered groups. Lattice ordered subgroups are characterized in terms of cuts, and a special construction of fuzzy lattice valued subgroups is presented. In addition, classical totally ordered groups are characterized by their lattice valued subgroups. An application to ordered groups of real numbers is given.
Keywords: Fuzzy poset, fuzzy ordering, fuzzy lattice, fuzzy chain, fuzzy lattice ordered group
DOI: 10.3233/IFS-131075
Journal: Journal of Intelligent & Fuzzy Systems, vol. 27, no. 3, pp. 1119-1127, 2014
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