2 problems

Assume the regression model holds with $Ee^{t\epsilon_{n,i}^2}<\infty$ for some $t>0$. Let $r_0$ be concave, satisfy $r_0(x_0)=y_0$, be twice continuously differentiable in a neigh…

Let $\Gamma$ be the set of parameter pairs $(\alpha,\beta)$ for which the replica-symmetric formula vanishes, and let $\Gamma'$ be its interior. For the likelihood ratio…