R=T and étaleness conjectures for refined deformation rings

Let Rρ,FR_{\rho,\mathcal F} be the ring pro-representing the refined deformation functor, let T\mathbb T be the completed local Hecke algebra at the corresponding eigenvariety point zz, and let κ\kappa be the weight map. R=T and criticality conjectures.

  1. The natural map
Rρ,FTR_{\rho,\mathcal F}\longrightarrow\mathbb T

is an isomorphism. 2. The map κ\kappa^{\sharp} is an isomorphism; equivalently, the weight map κ\kappa is étale at zz.

These assertions are the eigenvariety and deformation-theoretic consequences expected from the preceding conjectures. They are presented as conjectural in the source and remain open in general.

Sources & referencesView supporting material

Primary source

Joel Bellaiche and Gaetan Chenevier, “p-adic families of Galois representations and higher rank Selmer groups”, arXiv:math/0602340 (2007).

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