Hi all,

I am new to cvx and convex optimization.

I want to implement a SDP model where one of the constraints is on the form of

X == a*a’ (where X and a are variables). I know this is not allowed as per the DCP rules.

My question is, what are ways to overcome (relax) this constraint? Is there a general approach? I appreciate a guidance in where and what I should be looking for. Many thanks in advance.