 , we obtain $$\label{upper bound around maximum 0} \begin{split} &\mathbb{P}\bigg(\bigcup_{(s,t)\in \mathcal{D}} \{X_0(s)>u, X_0(t)>u)\}\bigg)\\ &\leq (0\pi)^{\frac{N}{0}}(-r''(0))^{-\frac{N}{0}}(0+\rho)^N