Antonio Lei

collaborators

2 papers

math.NT2024

On ordinary isogeny graphs with level structure

Antonio Lei, Katharina MÃ¼ller

Let $l$ and $p$ be two distinct prime numbers. We study $l$ -isogeny graphs of ordinary elliptic curves defined over a finite field of characteristic $p$ , together with a level stru…

math.NT2024

Lambda-invariants of Mazur--Tate elements attached to Ramanujan's tau function and congruences with Eisenstein series

Anthony Doyon, Antonio Lei

Let $p \in {3, 5, 7}$ and let $I^$ denote the weight twelve modular form arising from Ramanujan's tau function. We show that $I^$ is congruent to an Eisenstein series $E_{k, I ¨ , I ¨ }$ …