Since you are running a QuadraticProgram (QP) I'll assume your objective function is of the form:
$$ \min_x \quad f(x) = (b+x)^T Q (b+x) + P (b+x) \;,$$
where $b$ are the known market weights and thus $\delta^T b = 1$. $x$ is interpreted as a deviation in asset holding from the given market portfolio.
You have specified the constraints as:
1) $ \delta^T ...