 $$\begin{aligned}  \label{DefinitionRDimensionQuelquonque0} \bar{r}_{{\mathcal{C}},j}  ({\boldsymbol{\theta}},{\boldsymbol{\theta}}') = \underline{r}_{{\mathcal{C}},j}  ({\boldsymbol{\theta}},{\boldsymbol{\theta}}') = 