commutator length

短语

词形变化

commutator lengths 复数 commutator lengths

释义与例句

n.
  1. 1.

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

  2. 2.

    The supremum, over all elements of a given group's derived subgroup, of their commutator lengths.

    The commutator length of #92;langlea,b#124;b²#61;1#92;rangle is at least two, since there's an element of commutator length two in it.