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Green function 2D

  1. Feb 20, 2015 #1
    Hello, i dont understand how i integrate the star equation at the figure.

    Fot example [tex] \int d x_1 \int d x_2 \frac{d^2G}{d x_1} [/tex]

    [tex]= \int d x_1 \frac{d^2G}{d x_1} \int d x_2 [/tex]

    but [tex] \int d x_2 [/tex]
    [tex]x_2|^\epsilon_{-\epsilon}=0[/tex] ...sure this is a error, but i dont understand how i find the answer [tex]2a\pi[/tex]
     

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  2. jcsd
  3. Feb 21, 2015 #2

    Svein

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    Science Advisor

    1. I think you mean Green's function.
    2. The integral - such as you have presented it - makes little sense. [itex]\int_{a}^{b} dx_{1} [/itex] = b - a. Also [itex]\frac{d^{2}G}{dx_{1}} [/itex] makes no sense.
     
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