hey,

I am going through artin 1st edition myself and I am having problems with 2 questions from chapter 4.

Attachment 22554

Attachment 22555

Thanks for your help.

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- Oct 12th 2011, 04:31 PMshimaraeigenvector q and cayley-hamilton
hey,

I am going through artin 1st edition myself and I am having problems with 2 questions from chapter 4.

Attachment 22554

Attachment 22555

Thanks for your help. - Oct 12th 2011, 04:38 PMDrexel28Re: eigenvector q and cayley-hamilton
- Oct 12th 2011, 04:53 PMshimaraRe: eigenvector q and cayley-hamilton
- Oct 12th 2011, 04:57 PMHallsofIvyRe: eigenvector q and cayley-hamilton
Almost- you don't want that "I" in the denominator: .

- Oct 12th 2011, 05:01 PMshimaraRe: eigenvector q and cayley-hamilton
- Oct 12th 2011, 06:49 PMDevenoRe: eigenvector q and cayley-hamilton
you are not quite applying the formula correctly.

, so

does that look any better? - Oct 12th 2011, 07:03 PMshimaraRe: eigenvector q and cayley-hamilton
Thank You Deveno, it works now.

I am still having trouble with the other question though. - Oct 12th 2011, 07:28 PMDevenoRe: eigenvector q and cayley-hamilton
what do you have so far?

- Oct 12th 2011, 07:56 PMshimaraRe: eigenvector q and cayley-hamilton
nothing, that is why I need a little help.

- Oct 12th 2011, 08:22 PMDevenoRe: eigenvector q and cayley-hamilton
well, you know x is an eigenvector for A, and y is an eigenvector for B^T, what can you do with that?

- Oct 13th 2011, 06:48 AMshimaraRe: eigenvector q and cayley-hamilton
I have been trying to think about that but nothing comes to mind immediately.

- Oct 13th 2011, 04:08 PMshimaraRe: eigenvector q and cayley-hamilton
Well I thought about doing this:

edit: sorry, stupid thought.

Can someone give me a good hint on how to do this question?

Thanks