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Hallo zusammen,
ich würde gerne ein Integral der Form
∫∣∣x∣∣<1∫∣∣y∣∣<1f(∣x−y∣)dnxdny\int_{||x|| < 1} \int_{||y|| < 1} f(|x-y|) \; \mathrm{d}^n x \; \mathrm{d}^n y∫∣∣x∣∣<1∫∣∣y∣∣<1f(∣x−y∣)dnxdny
als
∫02g(z)f(z)dz\int_0^2 g(z) f(z) \; \mathrm{d}z∫02g(z)f(z)dz
schreiben.
Wie berechnet man g(z)?
https://de.wikipedia.org/wiki/Polarkoordinaten