The goal of this notebook is to plot the function $(\lambda,\gamma)\mapsto A_k(\lambda,\gamma)$ defined in Lemma 4 of https://arxiv.org/abs/1906.08530

The goal of this notebook is to plot the function $(\lambda,\gamma)\mapsto A_k(\lambda,\gamma)$ defined in Lemma 4 of https://arxiv.org/abs/1906.08530