EN
Let r and n be natural numbers. For n ≥ 2 all natural operators $T_{|ℳ fₙ} ⇝ T*T^{r*}$ transforming vector fields on n-manifolds M to 1-forms on $T^{r*}M = J^r(M,ℝ)₀$ are classified. For n ≥ 3 all natural operators $T_{|ℳ fₙ} ⇝ Λ²T*T^{r*}$ transforming vector fields on n-manifolds M to 2-forms on $T^{r*}M$ are completely described.