 where $\epsilon=r_{\mu^{-0}}(\boldsymbol{\epsilon},\boldsymbol{\lambda})$. In particular, if there exists $i_0\in I$ such that $f_{i_0}$ is $\epsilon_{i_0}$-strongly smooth, then $p_\mu({\bf f},{\boldsymbol \lambda})$ is $\epsilon$-strongly 