Eisenstein series, p-adic modular functions, and overconvergence, II

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Let p be a prime number. Continuing and extending our previous paper with the same title, we prove explicit rates of overconvergence for modular functions of the form
where
is a classical, normalized Eisenstein series on
and V the p-adic Frobenius operator. In particular, we extend our previous paper to the primes 2 and 3. For these primes our main theorem improves somewhat upon earlier results by Emerton, Buzzard and Kilford, and Roe. We include a detailed discussion of those earlier results as seen from our perspective. We also give some improvements to our earlier paper for primes
. Apart from establishing these improvements, our main purpose here is also to show that all of these results can be obtained by a uniform method, i.e., a method where the main points in the argumentation is the same for all primes. We illustrate the results by some numerical examples.
Original languageEnglish
Article number4
JournalResearch in Number Theory
Volume10
Issue number1
Pages (from-to)1-14
ISSN2363-9555
DOIs
Publication statusPublished - 2024

ID: 375965647