On the zeros of Eisenstein series for ${\Gamma }_0^{\ast }(2)$ and ${\Gamma }_0^{\ast }(3)$

Tsuyoshi Miezaki, Hiroshi Nozaki, Junichi Shigezumi

We locate all of the zeros of the Eisenstein series associated with the Fricke groups ${\Gamma }_0^{\ast }(2)$ and ${\Gamma }_0^{\ast }(3)$ in their fundamental domains by applying and expanding the metho…