Thread: Proofs on Hermitian matrices.

I need the proofs of following two theorems. Please help me

1) A hermitian matrix remains hermitian under unitary transformation.

2) A hermitian matrix remains hermitian when transformed by an orthogonal matrix.

Originally Posted by Suvadip

I need the proofs of following two theorems. Please help me

1) A hermitian matrix remains hermitian under unitary transformation.

2) A hermitian matrix remains hermitian when transformed by an orthogonal matrix.

I need millions of dollars, but if I don't put forth EFFORT to obtain it, I wont RECEIVE it.

Please give me just hints