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{\rm w}(t, r) = E_1 \left( \frac{r^2}{4 t} \right) = -{\rm Ei} \left( - \frac{r^2}{4 t} \right) |
defines a solution of honours a planar axial-symmetric diffusion equation with homogenous initial and boundary conditions:
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LaTeX Math Block | ||||
---|---|---|---|---|
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{\rm w}(t, r) = E_1 \left( \frac{r^2}{4 t} \right) = -{\rm Ei} \left( - \frac{r^2}{4 t} \right) |
defines a solution of honours a planar axial-symmetric diffusion equation with homogenous initial and boundary conditions:
...