2 problems

Let $d$ denote the ambient dimension, and consider the semi-parametric nonlinear regression setting in which the covariate-target relation is a linear dimensionality reduction foll…

Let $M_n$ denote the truncation level used for the estimation procedure, let $\widehat{\beta}$ be the estimator defined in equation (3.5), and let $\widetilde{M}$ be a quantity sel…