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.

All labels observed (3)

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Statements (50)

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 ⓘ

How these facts were elicited

Referenced by (3)

Full triples — surface form annotated when it differs from this entity's canonical label.

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