MV-algebras, infinite dimensional polyhedra, and natural dualities

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• 作者：Leonardo M. Cabrer ; Luca Spada
• 关键词：MV ; algebras ; Adjunction ; Natural duality ; Semisimple ; \(\mathbb {Z}\) ; map
• 刊名：Archive for Mathematical Logic
• 出版年：2017
• 出版时间：February 2017
• 年：2017
• 卷：56
• 期：1-2
• 页码：21-42
• 全文大小：
• 刊物类别：Mathematics and Statistics
• 刊物主题：Mathematical Logic and Foundations; Mathematics, general; Algebra;
• 出版者：Springer Berlin Heidelberg
• ISSN：1432-0665
• 卷排序：56

文摘

We connect the dual adjunction between MV-algebras and Tychonoff spaces with the general theory of natural dualities, and provide a number of applications. In doing so, we simplify the aforementioned construction by observing that there is no need of using presentations of MV-algebras in order to obtain the adjunction. We also provide a description of the dual maps that is intrinsically geometric, and thus avoids the syntactic notion of definable map. Finally, we apply these results to better explain the relation between semisimple tensor products and coproducts of MV-algebras, and we extend beyond the finitely generated case the characterisations of strongly semisimple and polyhedral MV-algebras.