Ponder...CentraliserThe centraliser of is , the stabiliser of under conjugation. Definition 4.18 (Centraliser) The centraliser of is defined to be which is just the stabiliser of under the conjugation action. RelatedConjugationOrbits and StabilisersConjugacy ClassCentreStated inDefinition 4.18 (Centraliser)§4.3 Conjugation
