Galois Alperin weight conjecture

About 3 years old · traced to

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.

References

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.