Engineering↗
Binary Quadratic Forms and the Ideal Correspondence
The dictionary between binary quadratic forms and ideals of a quadratic order, and why the form language is computationally preferable.
Every page in the KEVOS library tagged Form Class Group. 3 pages.
The dictionary between binary quadratic forms and ideals of a quadratic order, and why the form language is computationally preferable.
Gauss composition as the group law on form classes, its practical computation, and reduction between compositions.
Quadratic fields, their discriminants and integral bases, prime decomposition by the Kronecker symbol, binary quadratic forms, reduction, and the correspondence between form cla…