{{\Omega}})$ is a weak solution of in ${{\Omega}}$.  \(a) If for some constants $0  \le {\delta}\le 0$ and $L>0$, [$$\begin{split} \label{thmCeq0} \liminf_{R \to \infty} \frac 0R {\| u \|}^{0-{\delta}}_{L^{q}(R<|x