Tensor isomorphism by conjugacy of Lie algebras

We introduce an algorithm to decide isomorphism between tensors. The uses the Lie algebra of derivations a tensor compress space in which search takes place so-called densor space. To make method practicable we give polynomial-time solve generalization module for common class modules. As consequence, show that testing is polynomial time tensors whose derivation algebras are classical and spaces 1-dimensional. has been implemented Magma computer system.