commutator length

"Commutator length" is a concept used in group theory to measure the complexity of elements in a group in terms of commutators.

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Definition

C2Group Theory

(technical, academic)The minimum number of commutators required to express an element as a product of commutators.

Example

  • The commutator length of the element in the group was determined to be three.
  • Understanding commutator length helps in analyzing the structure of a group.

C2Topological Spaces

(technical, academic)The smallest number of commutators needed to represent a loop in the fundamental group of a space.

Example

  • In the study of topological spaces, the commutator length of a loop can provide insights into the space's fundamental group.
  • Researchers calculated the commutator length of various loops to understand the topological properties of the space.