Generalized Inertia Conjecture

From papers

Let r1r\geq 1 be an integer, let GG be a finite quasi pp-group, and for each 1ir1\leq i\leq r let IiI_i be a subgroup of GG that is an extension of a pp-group PiP_i by a cyclic group of order prime to pp. Write PiGP_i^G for the set of conjugates of PiP_i in GG, and assume

G=P1G,,PrG.G=\langle P_1^G,\ldots,P_r^G\rangle.

Let B={x1,,xr}B=\{x_1,\ldots,x_r\} be a set of closed points in P1\mathbb{P}^1.

Generalized Inertia Conjecture. There is a connected GG-Galois cover of P1\mathbb{P}^1 étale away from BB such that IiI_i occurs as an inertia group above xix_i for 1ir1\leq i\leq r.

This generalizes the one-point Inertia Conjecture to prescribed inertia groups at several points. The paper notes partial results for certain cases, including levels l{0,1}l\in\{0,1\}, but the conjecture is not settled in general.

Progress summary

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

Sources & referencesView supporting material

Primary source

Soumyadip Das, “On the Inertia Conjecture and its generalizations”, arXiv:2002.04934 (2020).

Solutions 0

No solutions have been posted yet.