Connectedness conjecture for the crystalline deformation-ring fibre
Connectedness conjecture for the crystalline deformation-ring fibre
Let be a finite field of characteristic , let be a finite extension of with absolute Galois group , and let be an absolutely irreducible finite-dimensional -representation of . Assume that is sufficiently large and that
where is unramified, is one-dimensional, and the residue field of embeds into . Let , let , and let be its fibre over the closed point of . Let be the map induced by induction. Connectedness conjecture. Every closed point of lies in the same connected component as a closed point arising from for some . This conjectural connectedness statement would strengthen the paper's potential diagonalizability result by controlling the connected components of the crystalline deformation-ring fibre; its resolution is not specified in the source.
Sources & referencesView supporting material
Primary source
Robin Bartlett, “On the irreducible components of some crystalline deformation rings”, arXiv:1904.12548 (2020).
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