Matsumoto's theorem (group theory)
In group theory, Matsumoto's theorem, proved by Hideya Matsumoto (1964), gives conditions for two reduced words of a Coxeter group to represent the same element. Sometimes, this is also called Matsumoto's lemma.
In group theory, Matsumoto's theorem, proved by Hideya Matsumoto (1964), gives conditions for two reduced words of a Coxeter group to represent the same element. Sometimes, this is also called Matsumoto's lemma.