Source: wikibot/smith-minkowski-siegel-mass-formula
= Smith–Minkowski–Siegel mass formula
{wiki=Smith–Minkowski–Siegel_mass_formula}
The Smith–Minkowski–Siegel mass formula is a result in the theory of quadratic forms and arithmetic geometry. It provides a way to compute the mass of an orbit of a quadratic form under the action of a group, typically the group of diagonalizable matrices over certain rings. This formula is particularly relevant in the study of quadratic forms over global fields and local fields.