$$ex buin L^{p,r}(0,T;L^{q,infty}(bR^3)),quadfrac{2}{p}+frac{3}{q}=1,quad 3<q<infty,quad 2<p<r<infty, eex$$ or $$ex sen{bu}_{L^{p,infty}(0,T;L^{q,infty}(bR^3))}leq ve,quad frac{2}{p}+frac{3}{q}=1,quad 3<q<infty,quad 2<p<infty, eex$$
$$ex buin L^{p,r}(0,T;L^{q,infty}(bR^3)),quadfrac{2}{p}+frac{3}{q}=1,quad 3<q<infty,quad 2<p<r<infty, eex$$ or $$ex sen{bu}_{L^{p,infty}(0,T;L^{q,infty}(bR^3))}leq ve,quad frac{2}{p}+frac{3}{q}=1,quad 3<q<infty,quad 2<p<infty, eex$$