Engineering↗
The Smith Normal Form Algorithm
The Smith normal form, its computation by alternating row and column reduction, and the invariant factors it exposes.
Every page in the KEVOS library tagged Elementary Divisors. 2 pages.
The Smith normal form, its computation by alternating row and column reduction, and the invariant factors it exposes.
The Smith normal form, elementary divisors, the structure theorem for finitely generated abelian groups, and the application to class group structure determination.