Orbifold Euler Characteristics of ${\overline{\mathcal{M}}}_{g,n}$

Zhiyuan Wang, Jian Zhou

We solve the problem of the computation of the orbifold Euler characteristics of $\Mbar_{g,n}$. We take the works of Harer-Zagier \cite{hz} and Bini-Harer \cite{bh} as our starting…