Divisors of ${\mathcal{A}}_4^{(1,1,2,2)}$

Paola Porru, Sammy Alaoui Soulimani

We construct two divisors in the moduli space ${\mathcal{A}}_4^{(1,1,2,2)}$ and we check their invariance and non-invariance under the canonical involution introduced by C. Birkenha…