Algèbres de Hecke quasi-ordinaires universelles
Let be an arithmetic ring of Krull dimension at most 1, and an -pointed stable curve of genus . Write . The invertible sheaf inherits a hermitian structure from the dual of the hyperbolic metric on the Riemann surface . In this article we prove an arithmetic Riemann-Roch type theorem that computes the arithmetic self-intersection of . The theorem is applied to modular curves , or , prime, with sections given by the cusps. We show , with when . Here is the Selberg zeta...
In this paper, we give a concrete method to compute -stabilized vectors in the space of parahori-fixed vectors for connected reductive groups over -adic fields. An application to the global setting is also discussed. In particular, we give an explicit -stabilized form of a Saito-Kurokawa lift.
A Brückner-Vostokov formula for the Hilbert symbol of a formal group was established by Abrashkin under the assumption that roots of unity belong to the base field. The main motivation of this work is to remove this hypothesis. It is obtained by combining methods of ()-modules and a cohomological interpretation of Abrashkin’s technique. To do this, we build ()-modules adapted to the false Tate curve extension and generalize some related tools like the Herr complex with explicit formulas for the...