Abstract:
For any linear operator defined over an arbitrary field k, there is a basis in which this matrix is a generalized Jordan matrix (of the second kind) with elements in the field k. For any linear operator, such a matrix is defined uniquely up to permutation of diagonal blocks.
Keywords:
linear operator over a field, Jordan normal form, generalized Jordan matrix, Jordan cell, algebraically closed field, companion matrix, block-diagonal matrix, splitting field.