2 problems

Restrict $\Gamma$ to be a rectangular lattice, and let $\mathcal{L}_{\mathbb{Z}^2}$ denote the corresponding Landau constant. Rectangular-lattice conjecture. For the problem restri…

Let $\Gamma \subset \mathbb{C}$ be discrete and $f_\Gamma \in \mathcal{U}$, where $\mathcal{U}$ is the class of universal covering maps of $\mathbb{D}$ onto…