The transformation *T* has the following
form:

where *t**ij1* are the
eigenvectors of *A*: *A* *t**ij1*= *l**i **t**ij1* and *t**ijk*¹0 defined by the following linear equations for *k *³ *2
*

(*A*-*l**i**I*)* **t**ijk*=* **t**ij(k-1)*

are called the **generalized
eigenvectors** of *A*.