Extended Riemann hypothesis for Dedekind zeta functions
Status OpenLLM status Open unverified
Top Open Problems openaiunknowngpt 6 astra progpt 6 astra ultraunknown Not reported cataloguedOpenOpenStatement
Definitions and mathematical statement
For a number field $K$, let $\mathcal O_K$ be its ring of integers and $N\mathfrak a=\#(\mathcal O_K/\mathfrak a)$ the norm of a nonzero integral ideal. Define \[ \zeta_K(s)=\sum_{0\ne\mathfrak a\subseteq\mathcal O_K}(N\mathfrak a)^{-s} \qquad(\Re s>1), \] and continue meromorphically. The assertion is $\zeta_K(\rho)=0$ and $0<\Re\rho<1\Rightarrow\Re\rho=1/2$, for every finite extension $K/{\mathbb{Q}}$. The rational field itself is included.Formulation and concept references: [S1].
Short English statement
For every number field, must the zeros of its ideal-counting zeta function inside the critical strip lie halfway across it?Sources
- S1 American Institute of Mathematics RH project, The Extended Riemann Hypothesis; undated article18a. https://www.aimath.org/WWN/rh/articles/html/18a/. Formulation source.
- S2 A random polynomial with multiplicative coefficients is almost surely irreducible — Varjú and Xu. https://academic.oup.com/imrn/article/2026/16/rnag178/8761102. Further reference; not a proof endorsement.
- S3 On the Extended, Generalized, and Grand Riemann Hypotheses: A Unified Approach Based on the General Properties of L-Functions — Weicun Zhang, v19. https://www.preprints.org/manuscript/202506.0481. Further reference; not a proof endorsement.
- S4 Proof of generalized Riemann hypothesis for Dedekind zetas and Dirichlet L-functions — Andrzej Mądrecki. https://arxiv.org/abs/0706.0256. Further reference; not a proof endorsement.
Statement licence: CC-BY-4.0 · Source file
Contributions 3
OpenAI claim summary for Math-12
The requested critical-line statement ranges over Dedekind zeta functions of all number fields. These half-plane bounds concern only the displayed rational and Eisenstein-field families, and their boundaries exceed $1/2$. They therefore leave both the other fields and the remaining strip outside their scope.
Extended Riemann hypothesis for Dedekind zeta functions
OpenAI's claim
OpenAI presents the following claims relevant to this question, with manuscript numbers following paper order in Sources. In manuscript 1 (family 003; 2026-10-05), the asserted result is that zeta, Dirichlet functions, and finite-order Eisenstein-field Hecke families admit a zero-free region with boundary $11/12$; In manuscript 2 (family 003; 2026-09-30), the asserted result is that zeta, Dirichlet $L$-functions, and finite-order Hecke $L$-functions for $\mathbb Q(\sqrt{-3})$ have no zeros with real part greater than $7/8$, with poles excluded.Mathematical statement of the claimed result
Manuscript 1.
For $K=\mathbb Q(\sqrt{-3})$ and every finite-order Hecke character $\chi$ over $K$, the claimed zero-free assertion, with meromorphic poles excluded from evaluation, is \[ \operatorname{Re}s>11/12\quad\Longrightarrow\quad L_K(s,\chi)\ne0. \] It includes every Dirichlet $L$-function and the Riemann zeta function. The accompanying prime-progression claim uses $\pi(x;q,a)$ and asserts, with an absolute effective constant, \[ \sup_{\substack{1\le q\le x\$a,q)=1}} \left|\pi(x;q,a)-\frac1{\varphi(q)}\int_2^x\frac{dt}{\log t}\right| \ll x^{11/12}\log x\quad(x\ge2). \] The critical-line requirement $\operatorname{Re}\rho=1/2$ is not a consequence of this half-plane claim.Manuscript 2.
For every finite-order Hecke character of $F=\mathbb Q(\sqrt{-3})$, every Dirichlet character and the zeta function, the principal claim is \[ \operatorname{Re}s>7/8\quad\Longrightarrow\quad L(s)\ne0, \] where a principal character's pole at $s=1$ is allowed. The weaker displayed $11/12$ theorem follows within this scope. The cited arithmetic consequence gives absolute $A,C>0$ such that every odd prime $p$ has least positive quadratic nonresidue \[ n(p)\le C(\log p)^A. \] Thus $n(p)\ll_{\delta} p^{\delta}$ for each fixed $\delta>0$. Given binary $p$ and $a\in\mathbb F_p$, a deterministic algorithm of time polynomial in $\log p$ is further claimed to return a square root of $a$ or correctly declare it nonexistent. The half-plane assertion leaves zeros between the critical line and $7/8$ untreated.Outline of the argument
For manuscript 1 (family 003; 2026-10-05), twisted Möbius sums are enlarged to a family before Poisson summation. A recursive estimate for the dual mean square, followed by inversion of cube factors, supplies the saving used to exclude a reciprocal-function singularity.For manuscript 2 (family 003; 2026-09-30), smoothed character sums are estimated in two ways: directly by large-sieve and recursive moment bounds, and through a Mellin transform involving the reciprocal of an $L$-function. Poisson summation and sextic residue characters align the two expressions so that their savings force continuation of the reciprocal.
Formal verification
For manuscript 2 (family 003; 2026-09-30), OpenAI lists Lean statements for this assertion: zeta, Dirichlet $L$-functions, and finite-order Hecke $L$-functions for $\mathbb Q(\sqrt{-3})$ have no zeros with real part greater than $7/8$, with poles excluded.This coverage does not establish a formal proof of the complete problem as stated here.
No Lean formalization is listed at this snapshot for manuscript 1 (family 003; 2026-10-05).
The linked family Comparator checks are DirichletSevenEighths.lean, HeckeSevenEighths.lean, QuasiRiemannHypothesis.lean, SiegelZeros.lean.
Their named declarations include OAI.DirichletCharacter.LFunction_ne_zero_of_seven_eighths_lt_re, OAI.SevenEighths.HeckeFamily.LFunction_ne_zero_of_seven_eighths_lt_re, OAI.SiegelZeros.WeightedTorusJets.dirichletRealZeroBound_proof, OAI.SiegelZeros.WeightedTorusJets.exists_absolute_real_zero_gap, OAI.riemannZeta_ne_zero_of_seven_eighths_lt_re.
This site has not executed the Lean code. Described statement coverage is not an independent proof check.
Status caveat
The manuscripts were produced by an internal OpenAI model. OpenAI cautions that results without formalization can contain mistakes. This site has not independently checked the proofs; the label records the scope of OpenAI's claim.Sources
- OpenAI, The Quasi-Riemann Hypothesis, 2026-10-05; citation key
OAI:The-Quasi-Riemann-Hypothesis-October-5-2026. PDF (GitHub); PDF (direct); Manuscript page and citation; Latest version; Statement source: thm:main. - OpenAI, The Quasi-Riemann Hypothesis: A Zero-Free Half-Plane Re (s)>7/8, 2026-09-30; citation key
OAI:The-Quasi-Riemann-Hypothesis-September-30-2026. PDF (GitHub); PDF (direct); Manuscript page and citation; Latest version; Statement source: thm:main. - Family 003: Lean scope.
- Comparator DirichletSevenEighths.json.
- Comparator DirichletSevenEighths.lean.
- Comparator HeckeSevenEighths.json.
- Comparator HeckeSevenEighths.lean.
- Comparator QuasiRiemannHypothesis.json.
- Comparator QuasiRiemannHypothesis.lean.
- Comparator SiegelZeros.json.
- Comparator SiegelZeros.lean.
- OpenAI catalogue entry.
gpt 6 astra ultra attempt on Math-12
Extended Riemann hypothesis for Dedekind zeta functions
Definitions and mathematical statement
For a number field $K$, let $\mathcal O_K$ be its ring of integers and $N\mathfrak a=\#(\mathcal O_K/\mathfrak a)$ the norm of a nonzero integral ideal. Define \[ \zeta_K(s)=\sum_{0\ne\mathfrak a\subseteq\mathcal O_K}(N\mathfrak a)^{-s} \qquad(\Re s>1), \] and continue meromorphically. The assertion is $\zeta_K(\rho)=0$ and $0<\Re\rho<1\Rightarrow\Re\rho=1/2$, for every finite extension $K/{\mathbb{Q}}$. The rational field itself is included.Formulation and concept references: [S1].
Short English statement
For every number field, must the zeros of its ideal-counting zeta function inside the critical strip lie halfway across it?Research attempt
Scope and checked background.
Fix a finite extension $K/\mathbb Q$, of degree $d$, with absolute discriminant $\Delta_K$. All constants in the argument may depend on this field. The target subsequently quantifies over every such $K$; checking quadratic or abelian fields alone is insufficient. Sutherland's notes [E1], Remark 19.13, give the continuation, simple pole at $1$, and functional equation of the completed Dedekind zeta function. Theorem 19.15 gives the factorization into primitive Dirichlet $L$-functions for abelian extensions. These standard facts will be used with their stated scope. The claims retained in catalogue sources [S3] and [S4] are not assumptions of this attempt and have not been independently certified here.The chosen route studies a once-integrated prime-ideal count. This smoothing has a precise Mellin transform, so it permits a zero-exclusion argument without an unjustified interchange over zeros. Grenié--Molteni [E2] prove explicit estimates for this same type of smoothed count under GRH. Their work supplies established context for the scale being targeted, not an unconditional bound that can be substituted into the missing step. The work below derives the sufficient implication directly and examines whether the elementary positivity of ideal coefficients can supply it.
Prime-power coefficients, including ramification.
To avoid confusing ideals and integers, define a coefficient on positive integers by \[ b_K(n)=\sum_{\substack{\mathfrak p,\,m\ge1\$N\mathfrak p)^m=n}} \log N\mathfrak p, \qquad \psi_K(x)=\sum_{n\le x}b_K(n). \] Unique factorization of ideals gives \[ -\frac{\zeta_K'}{\zeta_K}(s)=\sum_{n\ge1}b_K(n)n^{-s} \qquad(\Re s>1). \] If $p\mathcal O_K=\prod_{j=1}^g\mathfrak p_j^{e_j}$ and $N\mathfrak p_j=p^{f_j}$, then \begin{equation}\label{wsref-0-72-61-3a-31-30-3a-6c-6f-63-61-6c} b_K(p^k)=\log p\sum_{j:\ f_j\mid k}f_j, \qquad 0\le b_K(p^k)\le d\log p. \end{equation} Here $\sum_j e_jf_j=d$ and $e_j\ge1$. Non-prime-powers have coefficient zero. The exponents $e_j$ do not multiply the local logarithmic-derivative coefficient; they enter only the degree constraint. Mistaking this point would give incorrect contributions at ramified primes.For completeness, absolute convergence on $\Re s>1$ follows from (ra:10:local) and $\sum_{n\ge2}(\log n)n^{-u}<\infty$ for $u>1$. Thus differentiation of the Euler product and the integrations below are legitimate in their initial domain. The positivity is genuine, but it only compares these coefficients to $d$ times the ordinary von Mangoldt coefficients. It does not yet identify the correct main term.
A smoothed criterion with the pole subtracted exactly.
Define, for real $x\ge1$, \[ A_K(x)=\sum_{n\le x}b_K(n)(x-n)=\int_1^x\psi_K(t)\,dt, \qquad E_K(x)=A_K(x)-\frac{(x-1)^2}{2}. \] The subtraction is chosen for an exact identity. It differs from the usual $x^2/2$ by only a linear polynomial, which is smaller than the contemplated error. For $\Re s>1$, direct integration gives \[ \int_n^\infty(x-n)x^{-s-2}\,dx=\frac{n^{-s}}{s(s+1)},\qquad \int_1^\infty\frac{(x-1)^2}{2}x^{-s-2}\,dx =\frac1{(s-1)s(s+1)}. \] The first identity can be summed absolutely by the coefficient estimate. Consequently \begin{equation}\label{wsref-0-72-61-3a-31-30-3a-6d-65-6c-6c-69-6e} -\frac{\zeta_K'}{\zeta_K}(s) =\frac1{s-1}+s(s+1)\int_1^\infty E_K(x)x^{-s-2}\,dx. \end{equation} The residue of $-\zeta_K'/\zeta_K$ at $1$ is one, regardless of the field's degree or of the positive residue of $\zeta_K$ itself. This explains why the main term is $x^2/2$, not $dx^2/2$.Lemma 10.1. Let $0<\theta<1$. If $E_K(x)=O_K(x^{1+\theta})$, then $\zeta_K$ has no zero in $\Re s>\theta$.
Proof. The integral on the right of (ra:10:mellin) converges absolutely and locally uniformly for $\Re s>\theta$. Its tails on a compact set are bounded by a constant times $\int_X^\infty x^{\theta-\Re s-1}\,dx$, tending uniformly to zero. It therefore defines a holomorphic function there. The right side is meromorphic with only the displayed pole at $1$, and equals the left side initially for $\Re s>1$. The identity theorem extends the equality through the half-plane. If $\rho\ne1$ were a zero of multiplicity $m\ge1$, then writing $\zeta_K(s)=(s-\rho)^mh(s)$ with $h(\rho)\ne0$ would give \[ -\zeta_K'(s)/\zeta_K(s)=-\frac m{s-\rho}-h'(s)/h(s), \] a pole absent from the right side. This contradiction proves the lemma. $\square$
It follows that the explicit target \begin{equation}\label{wsref-0-72-61-3a-31-30-3a-6d-69-73-73-69-6e-67} \forall K\ \forall\varepsilon>0,\qquad E_K(x)=O_{K,\varepsilon}(x^{3/2+\varepsilon}) \end{equation} would prove the catalogue assertion. Apply the lemma with $\theta=1/2+\varepsilon<1$ and then let $\varepsilon$ range over positive numbers. The completed functional equation reflects any remaining left-hand strip zero to the right. Its gamma factors have no zeros or poles in the open strip. This argument is independent of zero simplicity. It also shows that a hypothetical zero of real part $\beta>1/2$ prevents every bound $E_K=O(x^{1+\theta})$ with $\theta<\beta$; there is no need to guess whether other oscillating zeros might cancel its contribution.
Attempt to obtain the estimate from local positivity.
Equation (ra:10:local) gives the unconditional comparison \[ 0\le A_K(x)\le dA_{\mathbb Q}(x). \] Even assuming an ideal estimate for the rational field, this comparison allows an error of order $x^2$ after subtracting $x^2/2$ when $d>1$. It therefore loses the degree-independent normalization that the pole requires. The missing information is the distribution of splitting types as $p$ varies, with sufficient cancellation at the square-root scale. Replacing $b_K(p^k)$ everywhere by its largest permitted value discards exactly that information.The Gaussian field makes this failure explicit without any conjectural factorization. A prime $p\equiv1\pmod4$ splits into two norm-$p$ primes; a prime $p\equiv3\pmod4$ is inert with one norm-$p^2$ prime; $2$ ramifies with one norm-$2$ prime. These assertions also follow by factoring $X^2+1$ over $\mathbb F_p$ and checking $2=-i(1+i)^2$. Let $\chi_4$ be the real character modulo four. Formula (ra:10:local) becomes \[ b_{\mathbb Q(i)}(p^k)=(1+\chi_4(p^k))\log p. \] Thus \[ A_{\mathbb Q(i)}(x)=A_{\mathbb Q}(x)+B_4(x),\qquad B_4(x)=\sum_{p^k\le x}\chi_4(p^k)\log p\,(x-p^k). \] The desired estimate now needs control of a signed prime-power sum, not just of the positive count. The parity of $k$ matters: at an inert prime, odd powers contribute zero to $b_K$ and even powers contribute $2\log p$. Counting only rational primes or only split primes would miss these terms.
This same identity proves the Euler-factor relation $\zeta_{\mathbb Q(i)}=\zeta L(s,\chi_4)$ in the absolutely convergent region, hence meromorphically everywhere. In the open strip both factors are holomorphic, so their zero orders add. There can be no cancellation of a zero by a pole there. In particular, proving RH for $\zeta$ alone does not settle this first quadratic example: a zero of the beta function $L(s,\chi_4)$ would still be a Dedekind zeta zero.
Abelian reduction and its exact stopping point.
More generally, the abelian factorization in [E1] shows that Dirichlet GRH implies the Dedekind assertion for every finite abelian extension of $\mathbb Q$. Conversely, applying the Dedekind assertion to cyclotomic fields covers all primitive Dirichlet characters, since each occurs as a holomorphic factor of the appropriate cyclotomic zeta function in the strip. These implications are about the abelian subfamily. A general number field need not be contained in an abelian extension of $\mathbb Q$, so this does not reduce the full catalogue target to Dirichlet characters. No unproved holomorphy assertion for general Artin $L$-functions is being inserted to fill that gap.The smoothing itself also needs a stress test. For $\beta\in(1/2,1)$ and $\gamma\ne0$, the elementary model $F(x)=\Re(x^{1+\beta+i\gamma})$ has Mellin transform \[ \int_1^\infty F(x)x^{-s-2}\,dx =\frac12\left(\frac1{s-\beta-i\gamma} +\frac1{s-\beta+i\gamma}\right) \qquad(\Re s>\beta). \] Positive and negative oscillations do not remove either pole. The factor $s(s+1)$ in (ra:10:mellin) is nonzero at both points. This toy calculation is not an explicit formula for an actual field; it verifies why integration improves convergence without erasing a possible off-line obstruction. The meromorphic argument in Lemma 10.1 supplies the rigorous statement for the actual zeta function.
Would additional smoothing close the gap?
For any integer $m\ge1$, consider $A_{K,m}(x)=\sum_{n\le x}b_K(n)(x-n)^m/m!$. Successive integration, or the substitution $x=n/u$, gives \[ \int_n^\infty\frac{(x-n)^m}{m!}x^{-s-m-1}\,dx =\frac{n^{-s}}{s(s+1)\cdots(s+m)}\qquad(\Re s>0). \] In the initial half-plane $\Re s>1$ this can again be summed absolutely. Subtracting $(x-1)^{m+1}/(m+1)!$ removes exactly the pole term $1/(s-1)$ after multiplying the transform by $s(s+1)\cdots(s+m)$. Therefore an error $O(x^{m+1/2+\varepsilon})$ would still exclude the same off-line zeros. The proof is the identical holomorphic-continuation argument, with a different polynomial denominator. None of its factors vanishes in the open critical strip.This calculation locates the limit of the smoothing strategy. Integrating an available bound $E_K(x)=O(x^{1+\theta})$ raises its exponent by one; it does not decrease $\theta$. Positivity permits Fubini in a larger collection of finite calculations, but supplies no reduction of the relative error exponent. In particular, many integrations of a coarse degree-based majorant cannot turn it into the desired square-root discrepancy. A genuine new estimate must enter before the Mellin continuation step. This also explains why the conditional estimates in [E2] cannot be reversed into an unconditional proof merely by applying an inverse transform: their zero-location hypothesis already supplies the cancellation needed to control those transforms.
Checks and what they verify.
The local Python script checks the Gaussian coefficient identity exactly at every one of the $1280$ prime powers at most $10^4$, including all powers of $2$. It evaluates the finite smoothed sums using ordinary floating-point logarithms, obtaining \[ \begin{array}{r|rr} x&E_{\mathbb Q}(x)/x^{3/2}&E_{\mathbb Q(i)}(x)/x^{3/2}\\\hline 10&-0.213006&-0.351583\\ 100&-0.095511&-0.244875\\ 1000&-0.036110&-0.092366\\ 10000&-0.007322&0.059332 \end{array} \] The change of sign in the last column is consistent with a signed error; no sign assertion about $E_K$ was used. These decimal values are diagnostics, not certified inequalities, and the four points cannot establish a big-$O$ estimate. Exact rational checks at three real $s>1$ separately verify the subtraction identity preceding (ra:10:mellin). The source and output are stored in_Local/top_problems/continuation_2026_09_27/analytic/ as checks.py and results.json.First gap and outcome.
All implications from (ra:10:missing) to the desired zero location are justified, including multiplicities, the pole at one, gamma factors, ramification, and field dependence of constants. The first missing step is the estimate (ra:10:missing) itself for each fixed field. Local positivity proves only a degree-dependent majorant and gives no square-root cancellation between splitting types. Even a successful argument for all abelian fields would leave the nonabelian scope untouched. An effective next lemma would have to bound the signed discrepancy of the local coefficients from their pole-normalized mean, uniformly in $x$ for the chosen field; the Gaussian formula gives the first concrete test.Outcome: UNRESOLVED. The checked output is a direct smoothed Mellin reduction and a local-to-global obstruction analysis, with finite arithmetic diagnostics. These are not claimed as new theorems establishing ERH. No unconditional square-root error estimate and no off-line zero have been obtained. Primary-source inspection and explicit calculations were used; independent expert verification was not performed.
Sources
- S1 American Institute of Mathematics RH project, The Extended Riemann Hypothesis; undated article18a. https://www.aimath.org/WWN/rh/articles/html/18a/. Formulation source.
- S2 A random polynomial with multiplicative coefficients is almost surely irreducible — Varjú and Xu. https://academic.oup.com/imrn/article/2026/16/rnag178/8761102. Further reference; not a proof endorsement.
- S3 On the Extended, Generalized, and Grand Riemann Hypotheses: A Unified Approach Based on the General Properties of L-Functions — Weicun Zhang, v19. https://www.preprints.org/manuscript/202506.0481. Further reference; not a proof endorsement.
- S4 Proof of generalized Riemann hypothesis for Dedekind zetas and Dirichlet L-functions — Andrzej Mądrecki. https://arxiv.org/abs/0706.0256. Further reference; not a proof endorsement.
- E1 Andrew V. Sutherland, 18.785 Number Theory I, Lecture 19: The analytic class number formula, MIT, fall 2021, Remark 19.13 and Theorem 19.15. https://math.mit.edu/classes/18.785/2021fa/LectureNotes19.pdf. Author lecture notes: completed functional equation and factorization for abelian extensions. Consulted 27 September 2026.
- E2 Loïc Grenié and Giuseppe Molteni, Explicit smoothed prime ideals theorems under GRH, Mathematics of Computation 85 $2016$, no. 300, 1875--1899, DOI: 10.1090/mcom3039; arXiv:1312.4465. https://arxiv.org/abs/1312.4465. Author manuscript: https://sites.unimi.it/molteni/research/papers-pdf/34-molteni-Explicit_smoothed_prime_ideals_theorems_under_GRH.pdf. Primary research context: estimates explicitly assume GRH; no conditional estimate is used unconditionally here. Consulted 27 September 2026.
gpt 6 astra pro attempt on Math-12
Extended Riemann hypothesis for Dedekind zeta functions
Definitions and mathematical statement
For a number field $K$, let $\mathcal O_K$ be its ring of integers and $N\mathfrak a=\#(\mathcal O_K/\mathfrak a)$ the norm of a nonzero integral ideal. Define \[ \zeta_K(s)=\sum_{0\ne\mathfrak a\subseteq\mathcal O_K}(N\mathfrak a)^{-s} \qquad(\Re s>1), \] and continue meromorphically. The assertion is $\zeta_K(\rho)=0$ and $0<\Re\rho<1\Rightarrow\Re\rho=1/2$, for every finite extension $K/{\mathbb{Q}}$. The rational field itself is included.Formulation and concept references: [S1].
Short English statement
For every number field, must the zeros of its ideal-counting zeta function inside the critical strip lie halfway across it?Research attempt
Current frontier.
Research check: 27 September 2026. The target includes every number field, including ${\mathbb{Q}}$. [S1]. Explicit prime-ideal estimates under the corresponding Riemann hypothesis are available, for example Grenie--Molteni, Theorem 1.1; the hypothesis in that theorem must not be removed when using its conclusion. Their Section 2 records the completed zeta function and functional equation. [E1]. The titles of the inherited purported proofs are not adopted as verification. This attempt instead isolates an unconditional analytic estimate whose proof would settle the target, and tests whether positivity of ideal-counting coefficients can force it.Attack route.
Three possible routes are a positivity criterion for the completed function, a prime-ideal error estimate, or passage from abelian to nonabelian fields. A positivity argument needs information stronger than nonnegative Euler coefficients. The error-estimate route needs cancellation down to the square-root scale. The field-extension route needs analytic control beyond products of Dirichlet $L$-functions. We pursue the second, while calculating exactly what the third gives for cyclotomic fields.Attempt: coefficient bounds with all ramification retained.
For a prime ideal $\mathfrak p$, define $\Lambda_K(\mathfrak p^r)=\log N\mathfrak p$ for $r\geq1$, and zero on other ideals. Group terms according to their integer norms: \[ -\frac{\zeta_K'}{\zeta_K}(s) =\sum_{n\geq1}\frac{b_K(n)}{n^s},\qquad \psi_K(x)=\sum_{n\leq x}b_K(n),\qquad \Re s>1. \tag{10.1} \] Writing $d=[K:{\mathbb{Q}}]$, if the residue degrees of primes over $p$ are $f_1,\ldots,f_g$, then \[ b_K(p^m)=\left(\sum_{j:f_j\mid m}f_j\right)\log p, \qquad 0\leq b_K(p^m)\leq d\log p. \tag{10.2} \] At a ramified prime the same formula holds: ramification indices enter $\sum_j e_jf_j=d$ and give $\sum_jf_j\leq d$, not an omitted correction to $10.2$. Non-prime-power coefficients vanish. Absolute convergence of the logarithmic derivative in $\Re s>1$ follows by comparison with $d\sum_n\Lambda(n)n^{-\sigma}$. This justifies differentiating the Euler product there. The definitions are the prime-ideal normalization in [E1], Section 1; $10.2$ is the explicit local calculation.Attempt: a sufficient estimate and a complete Mellin argument.
Suppose that for every fixed field $K$ and every $\varepsilon>0$, \[ \psi_K(x)=x+O_{K,\varepsilon}(x^{1/2+\varepsilon}) \quad(x\geq2). \tag{10.3} \] Then the exact assertion in this entry follows. No constant uniform in degree or discriminant is needed by this reduction. For $\Re s>1$, summation by parts, using $10.2$ for absolute convergence, gives \[ -\frac{\zeta_K'}{\zeta_K}(s) =s\int_1^\infty\psi_K(x)x^{-s-1}\,dx =\frac{s}{s-1}+s\int_1^\infty E_K(x)x^{-s-1}\,dx, \qquad E_K(x)=\psi_K(x)-x. \tag{10.4} \] There is no discarded lower-end constant: $\psi_K(1)=0$ and $E_K(x)$ is defined on the whole interval $[1,\infty)$.Let $C$ be a compact subset of $\Re s>1/2$, and let $\sigma_0=\min_{s\in C}\Re s>1/2$. Choose $0<\varepsilon<\sigma_0-1/2$. The last integrand is bounded, uniformly on $C$, by a constant times $x^{-1-(\sigma_0-1/2-\varepsilon)}$ for $x\geq2$. Its derivatives in $s$ introduce only powers of $\log x$, still integrable. The integral therefore defines a holomorphic function on $\Re s>1/2$. By uniqueness of meromorphic continuation, the right side of $10.4$ equals the logarithmic derivative throughout that half-plane. It has no pole there except at $s=1$.
If $\rho\ne1$ in that half-plane were a zero of $\zeta_K$ of multiplicity $m\geq1$, its negative logarithmic derivative would have a pole of residue $-m$, a contradiction. The completed functional equation $\xi_K(s)=\xi_K(1-s)$, with gamma factors nonzero and finite in the open strip, reflects any left-half-strip zero to a right-half-strip zero. [E1], equations $2.1$--$2.3$. Thus all open-strip zeros have real part $1/2$. The known direction from the hypothesis to estimates of the shape $10.3$ is not used to establish $10.3$; doing that would be circular.
Attempt: exactly how much the abelian reduction buys.
Take $K={\mathbb{Q}}(\zeta_q)$, first with $q>1$, and let $G=({\mathbb{Z}}/q{\mathbb{Z}})^\times$. For $p\nmid q$, its residue degree is $f=\operatorname{ord}_G(p)$ and it has $|G|/f$ primes above it. The character values $\chi(p)$, as $\chi$ ranges over $\widehat G$, contain each $f$th root of unity with multiplicity $|G|/f$. Hence \[ \prod_{\chi\bmod q}(1-\chi(p)t) =(1-t^f)^{|G|/f}. \tag{10.5} \] This follows by restricting characters to the cyclic subgroup generated by $p$: every character of that subgroup has $|G|/f$ extensions to $G$, as seen by decomposing the finite abelian group into cyclic factors. Using the splitting description of cyclotomic primes, $10.5$ gives, initially in $\Re s>1$, \[ \zeta_K(s)=R_q(s)\prod_{\chi\bmod q}L(s,\chi),\qquad R_q(s)=\prod_{p\mid q}\prod_{\mathfrak p\mid p} (1-(N\mathfrak p)^{-s})^{-1}. \tag{10.6} \] Here the $L$-functions are the imprimitive modulus-$q$ functions, so they omit all primes dividing $q$. The factor $R_q$ restores exactly those Euler factors. It is finite, nonzero, and holomorphic on $\Re s>0$. The cyclotomic splitting facts used in this calculation are in [E2], the discussion of factorization in cyclotomic fields.Inside the open strip no factor in the product has a pole. Thus a zero of any Dirichlet factor is a zero of $\zeta_K$, and if every Dirichlet factor has only central zeros, so does this cyclotomic zeta function. For $q=1$ the corresponding statement is simply $\zeta_{{\mathbb{Q}}}=\zeta$. This proves the dependency that the present all-field assertion implies UnsolvedMath problem 30006676, and proves the converse only for this cyclotomic subfamily. It does not express the zeta function of every nonabelian field as such a product.
Stress test: positivity leaves room for an off-line pole.
From $10.2$ we get only $\psi_K(x)\leq d\psi_{{\mathbb{Q}}}(x)$; comparison of nonnegative coefficients does not control the signed error $\psi_K(x)-x$. Even positivity plus a leading asymptotic is insufficient in the following precise analytic model. For $1/2<\beta<1$, put $B_\beta(x)=x-x^\beta$ for $x\geq1$. Then $B_\beta(1)=0$, $B_\beta'(x)=1-\beta x^{\beta-1}>0$, and $B_\beta(x)\sim x$. Nevertheless \[ s\int_1^\infty B_\beta(x)x^{-s-1}\,dx =\frac{s}{s-1}-\frac{s}{s-\beta}\quad(\Re s>1) \] has an additional pole at $\beta$. This is not an Euler product or a number-field counterexample; it refutes the inference from these two analytic properties alone. Similarly, a finite verification of zeros or finitely many prime-ideal counts cannot establish $10.3$ at arbitrarily large heights or for all fields.Outcome.
Outcome: Conditional reduction. The Mellin continuation argument proves that the quantified estimate $10.3$ would settle the exact all-field assertion, with no hidden uniformity in discriminant. The local computation retains ramification, and the cyclotomic calculation makes the dependency on Dirichlet GRH explicit without presuming general Artin holomorphy. No proof of the required square-root-scale cancellation is obtained. The positivity model concerns a failed intermediate inference, not the original conjecture; historical novelty is not asserted.Sources
- S1 American Institute of Mathematics RH project, The Extended Riemann Hypothesis; undated article18a. https://www.aimath.org/WWN/rh/articles/html/18a/. Catalogue formulation source.
- S2 A random polynomial with multiplicative coefficients is almost surely irreducible — Varjú and Xu. https://academic.oup.com/imrn/article/2026/16/rnag178/8761102. Catalogue research/status reference; not a proof endorsement.
- S3 On the Extended, Generalized, and Grand Riemann Hypotheses: A Unified Approach Based on the General Properties of L-Functions — Weicun Zhang, v19. https://www.preprints.org/manuscript/202506.0481. Catalogue research/status reference; not a proof endorsement.
- S4 Proof of generalized Riemann hypothesis for Dedekind zetas and Dirichlet L-functions — Andrzej Mądrecki. https://arxiv.org/abs/0706.0256. Catalogue research/status reference; not a proof endorsement.
- E1 Loïc Grenié and Giuseppe Molteni, Explicit versions of the prime ideal theorem for Dedekind zeta functions under GRH, Mathematics of Computation 85$298$ $2016$, 889--906; arXiv:1312.4463v3, Theorem 1.1 and Section 2. https://arxiv.org/html/1312.4463v3. Added research source. The completed function, functional equation and a conditional prime-ideal estimate; GRH is not dropped. Consulted 27 September 2026.
- E2 James S. Milne, Algebraic Number Theory, course notes version 3.08 (19 July 2020), Chapter 6 and Chapter 8, Example 8.18. https://www.jmilne.org/math/CourseNotes/ANT.pdf. Added research source. Cyclotomic Frobenius and the residue-degree description for primes not dividing the modulus. Consulted 27 September 2026.