Is it available write {\left\| {\rm{v}} \right\|^3} like following in cvx:
norm(\rm{v})^3
where \rm{v} is vector.
Can CVX recognize the cubic of 2-norm like following?
pow_pos(norm(v),3) works in CVX2.1 or CVX 3.0beta
norm(v)^3 works in CVX3.0beta (due to newly added sign aware convexity analysis capability), but is not accepted by CVX2.1