paper

On periods of Elliptic curves

arXiv:2606.02254

Abstract

Let be an elliptic curve over having split multiplicative reduction at a prime number . We describe the tame part of the -invariant of at in terms of automorphic -adic periods introduced in the work of Darmon. More precisely, we prove an equality of refined -invariants using twisted versions of refined exceptional zero conjectures. When the conductor of the elliptic curve is exactly and the automorphic period is attached to an optimal embedding of conductor then we prove this equality unconditionally by using the work of de-Shalit.

v.2 fixed metadata. 15 pages, comments are welcomed