Events

Institute for Logic, Language and Computation


26 April 2017, Algebra|Coalgebra Seminar, George Metcalfe

Speaker: George Metcalfe (Universität Bern)
Title: Ordering Free Groups
Date: Wednesday 26 April 2017
Time: 16:00-17:00
Location: Room F1.15, ILLC, Science Park 107, Amsterdam

Ordering conditions for groups provide useful tools for the study of various relationships between group theory, universal algebra, topology, and logic. In this talk, I will describe a new “algorithmic” ordering condition for extending partial orders on groups to total orders. I will then show how this condition can be used to show that extending a finite subset of a free group to a total order corresponds to checking validity of a certain inequation in the class of totally ordered groups. As a direct consequence, we obtain a new proof that free groups are orderable.

For more information, see http://www.illc.uva.nl/alg-coalg or contact Frederik Lauridsen at .

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