Infinite body, spherical coordinate, transient 1-D.

G_RS00(r, t $\displaystyle \left\vert\vphantom{ \,r^{\prime },\tau }\right.$ r, $\displaystyle \tau$ $\displaystyle \left.\vphantom{ \,r^{\prime },\tau }\right.$ )	=	$\displaystyle {\frac{1}{8\pi r\,r^{\prime }[\pi \alpha (t-\tau )]^{1/2}}}$
		`*` $\displaystyle \left\{\vphantom{ \exp \left[ -\frac{(r-r^{\prime })^{2}}{4\alpha... ...ht] -\exp \left[ -\frac{(r+r^{\prime })^{2}}{4\alpha (t-\tau )}\right] }\right.$ exp $\displaystyle \left[\vphantom{ -\frac{(r-r^{\prime })^{2}}{4\alpha (t-\tau )}% }\right.$ - $\displaystyle {\frac{(r-r^{\prime })^{2}}{4\alpha (t-\tau )}}$ $\displaystyle \left.\vphantom{ -\frac{(r-r^{\prime })^{2}}{4\alpha (t-\tau )}% }\right]$ - exp $\displaystyle \left[\vphantom{ -\frac{(r+r^{\prime })^{2}}{4\alpha (t-\tau )}}\right.$ - $\displaystyle {\frac{(r+r^{\prime })^{2}}{4\alpha (t-\tau )}}$ $\displaystyle \left.\vphantom{ -\frac{(r+r^{\prime })^{2}}{4\alpha (t-\tau )}}\right]$ $\displaystyle \left.\vphantom{ \exp \left[ -\frac{(r-r^{\prime })^{2}}{4\alpha ... ...t] -\exp \left[ -\frac{(r+r^{\prime })^{2}}{4\alpha (t-\tau )}\right] }\right\}$