Theorem · version 2

Dirichlet GRH implies classical RH

Statement

If Dirichlet GRH holds for every primitive character, including the trivial primitive character of conductor 1, then classical RH holds.

Assumptions

  • The trivial conductor-one L-function is ζ(s).

Scope

A one-way specialization; a proof of classical RH supplies no proof for every other character.

Evidence

Source reports

Connections

In this problem · publication v13

Riemann hypothesis →

Conditional implication · Proved

The conductor-one case is classical zeta; this specialization has no asserted converse.

One-way implication

Dirichlet GRH includes classical ζ as the conductor-one case.

The direction is GRH → RH. No converse is asserted.

Details & sources
Generalized RH for Dirichlet L-functions →

Open · version 2

For every primitive Dirichlet character χ, each nontrivial zero of L(s,χ) in 0 < Re(s) < 1 has real part 1/2.

  • Primitive Dirichlet characters of every conductor.
  • Zeros in the critical strip; exclude the pole of the principal L-function at s = 1.

Scope: The Dirichlet version of GRH, a broader family than classical ζ.

classical RH holds →

Open · version 3

Every nontrivial zero ρ\rho of the meromorphic continuation of ζ(s)\zeta(s) has Re⁡(ρ)=12\operatorname{Re}(\rho)=\frac12.

  • Classical Riemann zeta function; nontrivial zeros in 0 < Re(s) < 1.

Scope: Every zero at every height; negative-even trivial zeros and the pole at 1 are excluded.

Dirichlet GRH implies classical RH →

Relationship statement · Proved · version 2

If Dirichlet GRH holds for every primitive character, including the trivial primitive character of conductor 1, then classical RH holds.

  • The trivial conductor-one L-function is ζ(s).

Scope: A one-way specialization; a proof of classical RH supplies no proof for every other character.

Relationship not independently reviewed.

Connection in Riemann hypothesis →

Relationship not independently reviewed. This concerns its use in this problem.

Sources

Alpöge–Furman · simple zeros on the line →

Levent Alpöge · Ralph Furman · Preprint

August 2026 preprint. Named mathematical authors explicitly state that they verified the proof and take responsibility. Journal acceptance and independent OpenMath expert review are not established.

Revision & attribution

Source revision: arxiv-v2. Observed Oct 10, 2026.

The paper credits Claude (Anthropic) with discovery and writing; Alpöge and Furman with verification, Jarred Sumner with guiding the investigation, and Eric Easley with orchestrating Lean formalization. Company attribution is source-reported, not independently reproduced here.

Source updated Aug 19, 2026.

Bombieri · official RH description →

  • §I, PDF page 1 → · Original passage ↗
    Recorded wording

    Do all nontrivial zeros of the Riemann zeta function have real part 1/2?

    paraphrase · No upstream full text or code is republished by this record.

Enrico Bombieri · Published

Official Clay exposition. Historical results and approaches must not be read as current record bounds.

Revision & attribution

Source revision: official-description. Observed Oct 10, 2026.

The cited work does not report AI involvement; absence of attribution is not evidence of absence.

History

Statement versions

Statement versions and problem publication versions are separate. A new publication can update context or sources while retaining the same statement.

Assessment history · 1

Assessments retained in these publication records. Earlier statement versions retain their own source histories.

Record details
Claim ID
claim-rh-dirichlet-grh-implies-classical
Statement version
2
SHA-256
9878fd9650265f6e5ab9ca5df00c34fa12c7980bdc74c91cd01cad71e3c9fc32

Publication records