Natural operators on vector fields on the cotangent bundles of the bundles of ( k , r ) -velocities Tomáš, Jiří Similarity:
On the natural operators transforming vector fields to the r -th tensor power Kolář, Ivan Similarity:
Natural liftings of vector fields to tangent bundles of bundles of 1 -forms Piotr Kobak (1991) Mathematica Bohemica Similarity: Natural liftings D : I → I T T * are classified for n ≥ 2 . It is proved that they form a 5-parameter family of operators.