Butler group

In mathematics, a Butler group is a group that is the image of a completely decomposable abelian group of finite rank. They were introduced by M. C. R. Butler (1965).

References

• Butler, M. C. R. (1965), "A class of torsion-free abelian groups of finite rank", Proc. London Math. Soc., Series 3 15: 680–698, doi:10.1112/plms/s3-15.1.680 
• Hazewinkel, Michiel, ed. (2001), "Butler group", Encyclopedia of Mathematics, Springer Science+Business Media B.V. / Kluwer Academic Publishers, ISBN 978-1-55608-010-4, https://www.encyclopediaofmath.org/index.php?title=Butler_group