Breuil–Herzig global ordinary-part conjecture for indecomposable points
Breuil–Herzig global ordinary-part conjecture for indecomposable points
Let be the parameter space appearing in the global setting, let be the coefficient field, and let be the set of places above . For a generic ordinary point with indecomposable for every , define
Let denote the ordinary part of the -representation . Breuil–Herzig's global ordinary-part conjecture. Suppose that is a generic ordinary point and that is indecomposable at each place . Then there exists an integer and a -equivariant isomorphism
This is a global realization conjecture of Breuil and Herzig: the ordinary local representations should occur, with finite multiplicity, in the ordinary completed cohomology. The paper restricts the conjecture to the indecomposable case, while the more general generic ordinary formulation is attributed to Breuil and Herzig.
Sources & referencesView supporting material
Primary source
John Bergdall and Przemyslaw Chojecki, “Ordinary representations and companion points for U(3) in the indecomposable case”, arXiv:1405.3026 (2014).
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