Large Steklov eigenvalues on hyperbolic surfaces

Abstract: In this paper, we first construct a sequence of hyperbolic surfaces with connected geodesic boundary such that the first normalized Steklov eigenvalue $\tilde{\sigma}1$ tends to infinity. We then prove that as $g\rightarrow \infty$, a generic $\Sigma\in \mathcal{M}{g,n}(L_g)$ satisfies $\tilde{\sigma}1(\Sigma)>C\cdot |L_g|_1$ where $C$ is a positive universal constant. Here $\mathcal{M}{g,n}(L_g)$ is the moduli space of hyperbolic surfaces of genus $g$ and $n$ boundary components of length $L_g=(L_g^1,\cdots, L_g^n)$ endowed with the Weil-Petersson metric where $|L_g|_1\rightarrow\infty$ satisfies certain conditions.