Artin Holomorphy Conjecture
OPENLandmarkConjectureProposed 1923 · Standard version
Canonical statement
Let be a finite Galois extension of number fields with group , and let be a nontrivial irreducible finite-dimensional complex representation. For every nonzero prime ideal of , choose a prime of above it, let be its inertia group, and let denote an arithmetic Frobenius element acting on . The Artin -function
has an analytic continuation to an entire function on .
View source LaTeX
Let \(L/K\) be a finite Galois extension of number fields with group \(G\), and let \(\rho:G\to\mathrm{GL}(V)\) be a nontrivial irreducible finite-dimensional complex representation. For every nonzero prime ideal \(\mathfrak p\) of \(K\), choose a prime of \(L\) above it, let \(I_{\mathfrak p}\) be its inertia group, and let \(\operatorname{Frob}_{\mathfrak p}\) denote an arithmetic Frobenius element acting on \(V^{I_{\mathfrak p}}\). The Artin \(L\)-function
\[
L(s,\rho,L/K)=
\prod_{\mathfrak p}
\det\!\left(1-\rho(\operatorname{Frob}_{\mathfrak p})
N\mathfrak p^{-s}\mid V^{I_{\mathfrak p}}\right)^{-1},
\qquad \Re s>1,
\]
has an analytic continuation to an entire function on \(\mathbb C\).Notes
Brauer proved meromorphic continuation by expressing Artin characters through induced one-dimensional characters, and holomorphy is known for many solvable, monomial, and automorphic cases. Possible poles have not been excluded for every nontrivial irreducible representation.
References (3)
- [Artin1924LSeries]
Über eine neue Art von L-Reihen
Emil Artin · 1924 · misc
- [Brauer1947ArtinLSeries]
On Artin’s L-Series with General Group Characters
Open ↗Richard Brauer · 1947 · misc
- [LemkeOliverThornerZaman2024Artin]
An approximate form of Artin’s holomorphy conjecture and non-vanishing of Artin -functions
Open ↗Robert J. Lemke Oliver, Jesse Thorner, and Asif Zaman · 2024 · misc
The boxed statement is the canonical open formulation — not a stronger variant or a related research program. The status reflects the catalog's last review; do your own literature search before investing serious effort.