Siegel mass formula

E871399

The Siegel mass formula is a fundamental result in number theory that relates the weighted count (mass) of quadratic forms in a given genus to special values of zeta and L-functions, providing deep connections between arithmetic and geometry.

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Predicate Object
instanceOf mathematical theorem
result in number theory
appliesTo genera of quadratic forms
lattices
quadratic forms
characterizes mass of a genus of quadratic forms
concerns indefinite quadratic forms
integral quadratic forms
positive definite quadratic forms
rational quadratic forms
connects arithmetic of quadratic forms and analytic number theory
global arithmetic invariants
local representation theory of quadratic forms
field arithmetic geometry
arithmetic of quadratic forms
number theory
formalism adelic orthogonal groups
orthogonal group of a quadratic space
gives expression for mass as product of local factors
expression involving Dedekind zeta functions
expression involving Dirichlet L-functions
product formula for the mass of a genus
hasGeneralization Tamagawa number formula for orthogonal groups
mass formula for hermitian forms
mass formula for quadratic lattices over number fields
historicalPeriod 20th century mathematics
influenced development of the theory of Tamagawa numbers
modern theory of automorphic forms
involves product of local densities at all primes
volume of quotient of orthogonal group
isToolFor classification of quadratic forms
computation of class numbers of quadratic forms
study of lattices in Euclidean space
study of representation numbers of quadratic forms
namedAfter Carl Ludwig Siegel
provenBy Carl Ludwig Siegel
relatedTo Minkowski–Siegel formula
linked to: Siegel mass formula

Smith–Minkowski–Siegel mass formula
linked to: Siegel mass formula

Tamagawa measures
theta correspondence
relates masses of quadratic forms
special values of L-functions
special values of zeta functions
usesConcept Eisenstein series
adelic methods
automorphism group of a quadratic form
equivalence classes of quadratic forms
genus of quadratic forms
local densities
theta series

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Referenced by (3)

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Carl Ludwig Siegel notableWork Siegel mass formula
Siegel mass formula relatedTo Minkowski–Siegel formula
linked to: Siegel mass formula
Siegel mass formula relatedTo Smith–Minkowski–Siegel mass formula
linked to: Siegel mass formula