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Tractable Fields

Published online by Cambridge University Press:  20 November 2018

M. Chacron
Department of Mathematics, Carleton University, Ottawa, Ontario, K1S 5B6
J.-P. Tignol
Institut de Mathématique Pure et Appliquée, Université Catholique de Louvain, Chemin du Cyclotron, 2, B-1348 Louvain-la-Neuve, Belgium email:
A. R. Wadsworth
Department of Mathematics, 0112, University of California at San Diego, 9500 Gilman Drive, La Jolla, California 92093-0112, USA email:


A field $F$ is said to be tractable when a condition described below on the simultaneous representation of quaternion algebras holds over $F$ . It is shown that a global field $F$ is tractable iff $F$ has at most one dyadic place. Several other examples of tractable and nontractable fields are given.

Research Article
Copyright © Canadian Mathematical Society 1999


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