Commutant Duality

Chapter

Abstract

Consider an Abelian group E, written additively, and a set S of homomorphisms, addition-preserving mappings, EE. The commutantS com of S is the set of all maps f : EE that preserve addition and for which
$$f \circ s = s \circ f\mbox{ for all}s \in S.$$

Copyright information

© Springer Science+Business Media, LLC 2012

Authors and Affiliations

  1. 1.Department of MathematicsLouisiana State UniversityBaton RougeUSA

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