Why is it that any polynomial of degree n with leading coefficient the characteristic polynomial of some linear operator?

Also, how is this fact related to invariant subspaces?

- December 14th 2009, 08:19 PMcubrikalAny polynomial is the characteristic polynomial of some linear operator?
Why is it that any polynomial of degree n with leading coefficient the characteristic polynomial of some linear operator?

Also, how is this fact related to invariant subspaces? - December 15th 2009, 07:26 AMtonio