Smith–Minkowski–Siegel mass formula
id:
smith-minkowski-siegel-mass-formula-301-13050558
title:
Smith–Minkowski–Siegel mass formula
text:
In mathematics, the Smith–Minkowski–Siegel mass formula is a formula for the sum of the weights of the lattices in a genus, weighted by the reciprocals of the orders of their automorphism groups. The mass formula is often given for integral quadratic forms, though it can be generalized to quadratic forms over any algebraic number field. In 0 and 1 dimensions the mass formula is trivial, in 2 dimensions it is essentially equivalent to Dirichlet's class number formulas for imaginary quadratic fiel
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encyclopedia
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https://en.wikipedia.org/wiki/Smith%E2%80%93Minkowski%E2%80%93Siegel_mass_formula
date created:
date modified:
2023-12-03T18:18:26Z
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