The eigencurve intersection conjecture for one-dimensional local representations

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Let ll) and pp be distinct rational primes, let SS be a finite set of places of Q\mathbb{Q} containing pp, ll and ∞\infty, and let E\mathcal{E} be the cuspidal eigencurve lying over a modular two-dimensional residual representation VFV_{\mathbb{F}}. Each point x∈Ex\in\mathcal{E} has an associated two-dimensional Frobenius semisimple Weil–Deligne representation (ρx,l,Nx)(\rho_{x,l},N_x).

Eigencurve intersection conjecture. If x∈Ex\in\mathcal{E} is such that π(ρx,l,Nx)\pi(\rho_{x,l},N_x) is one dimensional, then there exist irreducible components Z,Z′⊂E\mathcal{Z},\mathcal{Z}'\subset\mathcal{E}, generically special and principal series respectively, such that x∈Z∩Z′x\in\mathcal{Z}\cap\mathcal{Z}'.

This conjecture predicts that every failure of local-to-global compatibility arising from a one-dimensional local representation occurs at an intersection of a generically special component and a generically principal-series component of the eigencurve. The supplied text gives no resolution of the conjecture.

References

Primary source

Alexander G. M. Paulin, “Failure of the Local to Global Principle in the Eigencurve”, arXiv:1001.2051 (2010).

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