Factorization numbers of finite abelian groups

The number of factorizations of a finite abelian group as the product of two subgroups is computed in two different ways and a combinatorial identity involving Gaussian binomial coefficients is presented‎.

کلیدواژه ها:

Factorization number‎ ، ‎Abelian group‎ ، ‎subgroup‎ ، ‎Gaussian‎ ‎binomial coefficient