An explicit upper bound for Siegel zeros of imaginary quadratic fields

Dimbinaina Ralaivaosaona, Faratiana Brice Razakarinoro

For any integer $d\ge 3$ such that $-d$ is a fundamental discriminant, we show that the Dirichlet $L$-function associated with the real primitive character $χ(\cdot)=(\frac{-d}{\c…