Deuring–Heilbronn phenomenon

E204744

The Deuring–Heilbronn phenomenon is a result in analytic number theory describing how the presence of an exceptional (Siegel) zero of a Dirichlet L-function forces other zeros away from the real axis, sharpening zero-free regions and affecting the distribution of primes in arithmetic progressions.

All labels observed (1)

Label Occurrences
Deuring–Heilbronn phenomenon canonical 1

How this entity was disambiguated

Statements (41)

Predicate Object
instanceOf phenomenon in analytic number theory
result in analytic number theory
appliesTo Dirichlet L-functions
surface form: Dirichlet L-function modulo q

L-functions associated to Dirichlet characters
assumes existence of an exceptional real zero close to 1
concerns distribution of primes in arithmetic progressions
location of zeros of Dirichlet L-functions
context analytic techniques in multiplicative number theory
study of exceptional zeros of L-functions
describes effect of Siegel zeros on the distribution of primes in arithmetic progressions
how an exceptional zero forces other zeros away from the real axis
repulsion of zeros of L-functions
sharpening of zero-free regions for Dirichlet L-functions
field analytic number theory
formalizes zero repulsion effect for Dirichlet L-functions
hasConsequence improved zero-free region near s = 1 for non-exceptional characters
repulsion between a Siegel zero and other zeros in the critical strip
stronger bounds for primes in arithmetic progressions when an exceptional zero exists
zeros of other Dirichlet L-functions are pushed away from the line Re(s) = 1
hasProperty gives quantitative zero repulsion conditional on a Siegel zero
non-effective with respect to the size of the exceptional zero
historicalPeriod 20th century mathematics
implies other zeros of related L-functions are bounded away from 1 by an explicit amount
involves Dirichlet L-functions
surface form: Dirichlet L-function

Dirichlet characters
surface form: Dirichlet character

Siegel zero
critical strip
exceptional zero
real axis
zero-free region
zeros of L-functions
namedAfter Hans Heilbronn
Max Deuring
relatedTo Chebotarev density theorem
Linnik’s theorem on the least prime in an arithmetic progression
Siegel zero
surface form: Siegel zero problem

Siegel’s theorem on zeros of L-functions
generalized Riemann hypothesis
zero-free regions for Dirichlet L-functions
usedIn bounds for error terms in prime number theorems for arithmetic progressions
effective versions of results conditional on the nonexistence of Siegel zeros

How these facts were elicited

Referenced by (1)

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

Max Deuring notableConcept Deuring–Heilbronn phenomenon