Ozlem Ejder

collaborators

2 papers

math.NT2022

Isolated Points on $X_{1} (ℓ^{n})$ with rational $j$ -invariant}

Ozlem Ejder

Let $ℓ$ be a prime and let $n \geq 1$ . In this note we show that if there is a non-cuspidal, non-CM isolated point $x$ with a rational $j$ -invariant on the modular curve $X_1(\el…

math.NT2018

On the level of modular curves that give rise to isolated $j$ -invariants

Abbey Bourdon, Ozlem Ejder, Yuan Liu +2

We say a closed point $x$ on a curve $C$ is sporadic if $C$ has only finitely many closed points of degree at most $deg (x)$ and that $x$ is isolated if it is not in…

Isolated Points on X1​(ℓn) with rational j-invariant}

On the level of modular curves that give rise to isolated j-invariants

Isolated Points on $X_{1} (ℓ^{n})$ with rational $j$ -invariant}

On the level of modular curves that give rise to isolated $j$ -invariants