Galois Alperin weight conjecture

Fix a prime pp and a finite group GG. Let H=Gal(K/Qp)\mathcal{H}=\operatorname{Gal}(\mathcal{K}/\mathbb{Q}_p) be the finite abelian group of Galois automorphisms associated with the pp-modular system described in the source. Let IBr(G)\operatorname{IBr}(G) be the irreducible Brauer characters of GG, and let W(G)\mathcal{W}(G) be the set of pp-weights of GG. The group H×Aut(G)\mathcal{H}\times\operatorname{Aut}(G) acts on both sets, and hence on the set of GG-orbits W(G)/G\mathcal{W}(G)/\sim_G. Galois Alperin weight conjecture. For any finite group GG, there exists an H×Aut(G)\mathcal{H}\times\operatorname{Aut}(G)-equivariant bijection

IBr(G)W(G)/G.\operatorname{IBr}(G)\longrightarrow\mathcal{W}(G)/\sim_G.

This strengthens Alperin's weight conjecture by requiring compatibility with Galois and group automorphisms. It is known for pp-solvable groups in the strengthened form, but remains open in general.

Sources & referencesView supporting material

Primary source

Zhicheng Feng, Qulei Fu and Yuanyang Zhou, “A reduction theorem for the Navarro Alperin weight conjecture”, arXiv:2312.02594 (2026).

Progress summary

Never refreshed

Nothing recorded yet. Refresh searches the literature and the public web for attempts on this problem, and writes the first summary here.

Solutions 0

No solutions have been posted yet.