 \newt \lemur \fish \horse %      {\cal G}_<(U,U^\prime) = i A_<(U^\prime) U^{\frac{\alpha}{2}(p-5)}%         H_\alpha^{(1)}\left(\frac{2q}{(5-p)}U^{\frac{1}{2}(p-5)}\right)~.      {\cal G}_<(U,U^\prime) = i A_<(U^\prime) U^{\frac{1}{2}(p-7)}         H_\alpha^{(1)}(q)~.