commutant
Definition from Wiktionary, the free dictionary
English[edit]
Etymology[edit]
Noun[edit]
commutant (plural commutants)
 (algebra, logic) The subset of all elements of a semigroup that commute with the elements of a given subset

2008 September 27, John Earman, “Superselection Rules for Philosophers”, Erkenntnis, volume 69, number 3, DOI:10.1007/s106700089124z:
 The basic mathematical entity to be used here in elucidating the different senses of superselection rules is a von Neumann algebra a concrete C * algebra 6 of bounded linear operators acting on a Hilbert space 7 that is closed in the weak topology 8 or, equivalently, 9 that has the property that where “′” denotes the commutant.

See also[edit]
French[edit]
Verb[edit]
commutant
 Present participle of commuter.
Latin[edit]
Verb[edit]
commūtant
 thirdperson plural present active indicative of commūtō