Finding Green's function for diffusion equation

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SUMMARY

The forum discussion centers on finding the Green's function for the diffusion equation given by the equation ({\partial{}_t}^2 -D \Delta^2)G(\vec{r},t;\vec{r}_o,t_o)=\delta(\vec{r}-\vec{r}_o)\delta(t-t_o) in two dimensions. Participants suggest employing Fourier and Laplace transforms as effective methods to tackle this problem. The use of Bessel equations is also mentioned as a potential approach, indicating the complexity of the solution process. Overall, the discussion emphasizes the importance of these mathematical tools in solving partial differential equations.

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Homework Statement


Find the solution for:
[tex]({\partial{}_t}^2 -D \Delta^2)G(\vec{r},t;\vec{r}_o,t_o)=\delta(\vec{r}-\vec{r}_o)\delta(t-t_o)[/tex]
In two dimensions.

Homework Equations

The Attempt at a Solution


Am I supposed to use bessel eqs? I'm kind of stuck in starting the problem :L
 
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I suggest using Fourier and/or Laplace transforms.
 

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