Equation 16.19.7A6E0B033C065

\begin{align} (\alpha +\mathcal D H(x,|G\xi |))[v,\eta ]^2 \geq {}& -(A\lambda +C_1|\xi |^2)|v|^2\notag \\ & -C_1|G||\xi ||v||\eta | -C_1|G|^2|\xi ||\eta |^2. \end{align}