Can every convex problem use Lagrangian dual method?
This is the wrong forum for such general questions since it does not relate to the cvx software. I would post it on
Maybe you should also explain the context a little bit more there.
Thank you very much!
If the Slater condition is not satisfied, there could be a duality gap, which is contrary to the premise under which primal-dual algorithms operate, and which they rely on for termination.