Arithmetic properties of orders in imaginary quadratic fields

Ho Yun Jung, Ja Kyung Koo, Dong Hwa Shin +1

Let $K$ be an imaginary quadratic field. For an order $\mathcal{O}$ in $K$ and a positive integer $N$, let $K_{\mathcal{O},N}$ be the ray class field of $\mathcal{O}$ modulo $N\m…