Let $$\sigma _{1}, \dots , \sigma _{k}$$ be the elementary symmetric functions of complex variables $$x_{1}, x_{k}$$ . We say that $$F \in {\mathbb {C}}[\sigma _{k}]$$ is a trace function if their exists $$f {C}}[z]$$ such $$F(\sigma _{k}) = \sum _{j=1}^{k} f(x_{j})$$ for all {C}}^{k}$$ give an explicit finite family second order differential operators in Weyl algebra $$W_{2}:= _{k}]\langle \fr...