plural of commutation ticket

(mathematics) The branch of algebra concerned with commutative rings and objects related to them (such as ideals and modules).

The number of multiplicands needed, at a minimum, to express a given group element as a product of commutators.

The subgroup of a specified group generated by the larger group's commutators.

plural of commutator length

plural of commutator subgroup

(rail transport) A rail transport system with trains used to transport commuters between two places, typically their homes and works, normally within a metropolitan area and its surrounding environs, and generally distinguished from other rail transport systems (i.e. subways, metros, tramways) by having less frequent service, lacking free transfers between trains and using heavy rolling stock running on a mainline railway

plural of self-commutator

Synonym of bedroom community

present participle of counter-commute