Mating quadratic maps with the modular group II

Shaun Bullett, Luna Lomonaco

In 1994 S. Bullett and C. Penrose introduced the one complex parameter family of $(2:2)$ holomorphic correspondences ${\mathcal{F}}_a$: $$\left(\frac{aw-1}{w-1}\right)^2+\left(\frac{…