EntityQ30603786· pop 5· linked from 57 articlescenterSign in to savesubring consisting of elements that commute with any elementConnectionsLie algebra representationEntityalgebraEntityInternational Standard Book NumberEntityabstract algebraEntityfieldEntityidentity matrixEntitycommutative ringEntityLie algebraEntitydivision ringEntityfield extensionEntitycenterEntityassociative algebraEntitysubringEntitysimple ringEntityuniversal enveloping algebraEntityGraduate Texts in MathematicsEntityCasimir invariantEntitymatrix ringEntityMorita equivalenceEntitycentral simple algebraEntityCategoriesRing theory