\(p\)-adic \(L\)-functions of Bianchi modular forms. (English) Zbl 1436.11142
Summary: The theory of overconvergent modular symbols, developed by Rob Pollack and Glenn Stevens, gives a beautiful and effective construction of the \(p\)-adic \(L\)-function of a modular form. In this paper, we give an analogue of their results for Bianchi modular forms, that is, modular forms over imaginary quadratic fields. In particular, we prove control theorems that say that the canonical specialisation map from overconvergent to classical Bianchi modular symbols is an isomorphism on small slope eigenspaces of suitable Hecke operators. We also give an explicit link between the classical modular symbol attached to a Bianchi modular form and critical values of its \(L\)-function, which then allows us to construct \(p\)-adic \(L\)-functions of Bianchi modular forms.
MSC:
| 11S40 | Zeta functions and \(L\)-functions |
| 11F12 | Automorphic forms, one variable |
| 11F67 | Special values of automorphic \(L\)-series, periods of automorphic forms, cohomology, modular symbols |
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