\(p\)-adic dynamics of Hecke operators on modular curves. (English) Zbl 1477.11081
Summary: In this paper we study the \(p\)-adic dynamics of prime-to-\(p\) Hecke operators on the set of points of modular curves in both cases of good ordinary and supersingular reduction. We pay special attention to the dynamics on the set of CM points. In the case of ordinary reduction we employ the Serre-Tate coordinates, while in the case of supersingular reduction we use a parameter on the deformation space of the unique formal group of height 2 over \(\overline{\mathbb{F}}_p\), and take advantage of the Gross-Hopkins period map.
MSC:
| 11F32 | Modular correspondences, etc. |
| 11G18 | Arithmetic aspects of modular and Shimura varieties |
| 11G15 | Complex multiplication and moduli of abelian varieties |
| 14G35 | Modular and Shimura varieties |
Keywords:
\(p\)-adic dynamics; Hecke operators; modular curves; Serre-Tate coordinates; Gross-Hopkins period mapReferences:
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