Mathematics Stack Exchange is a question and answer site for people studying math at any level and professionals in related fields. It's 100% free, no registration required.

Sign up
Here's how it works:
  1. Anybody can ask a question
  2. Anybody can answer
  3. The best answers are voted up and rise to the top

The problem is formulated as:


where $G\in\Re^{n\times m}$, $n\geq m$, $G^TG=I$ and $A\in\Re^{n\times n}$ is positive semi-definite.

How to solve this problem by using the Lagrangian Multiplier method?

share|cite|improve this question
Minimize or maximize? – littleO Oct 30 '12 at 8:36
That does not matter. – mining Oct 30 '12 at 8:53

Your Answer


By posting your answer, you agree to the privacy policy and terms of service.

Browse other questions tagged or ask your own question.