Do anyone has an example of nxn hermitian matrix with complex entries which has repeated eigenvalues?

If can make the n as small as possible. Thank you

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- Mar 1st 2011, 10:07 PMguinhermitian matrix over C
Do anyone has an example of nxn hermitian matrix with complex entries which has repeated eigenvalues?

If can make the n as small as possible. Thank you - Mar 1st 2011, 10:30 PMDrexel28
- Mar 3rd 2011, 07:02 PMguin
But if I would like to have entries such as 2+i or other which will involve the term i ?

- Mar 4th 2011, 12:18 AMOpalg
The matrix has a repeated eigenvalue 0.

**Edit.**Or if you want*each*eigenvalue to be repeated then you'll need a 4x4 matrix:

- Mar 4th 2011, 12:23 AMFernandoRevilla