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Gauge-Invariant Uniqueness and Reductions of Ordered Groups

Robert Huben, University of Nebraska - Lincoln

Abstract

A reduction φ of an ordered group (G,P) to another ordered group is an order homomorphism which maps each interval [1, p] bijectively onto [1, φ(p)]. We show that if (G,P) is weakly quasi-lattice ordered and reduces to an amenable ordered group, then there is a gauge-invariant uniqueness theorem for P-graph algebras. We also consider the class of ordered groups which reduce to an amenable ordered group, and show this class contains all amenable ordered groups and is closed under direct products, free products, and hereditary subgroups.

Subject Area

Mathematics

Recommended Citation

Huben, Robert, "Gauge-Invariant Uniqueness and Reductions of Ordered Groups" (2021). ETD collection for University of Nebraska - Lincoln. AAI28490393.
https://digitalcommons.unl.edu/dissertations/AAI28490393

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