Question 6
Which of the following statements is/are True regarding Schur’s Theorem?
Every square matrix is unitarily similar to an upper triangular matrix.
The diagonal entries of the Schur form of a matrix are its eigenvalues.
A square matrix with repeated eigenvalues cannot always be unitarily similar to an upper triangular matrix.
Schur’s Theorem holds only for square matrices, as it requires unitary similarity and the presence of eigenvalues.