Formula_11761

\[h(|x-y|)=\left\{\begin{array}{l}\frac{1}{(n-2) \omega_{N}|x-y|^{N-2}}, \quad n \geqslant 3 ; \\\frac{1}{2 \pi} \ln \frac{1}{|x-y|}, \quad n \geqslant 2 ;\end{array}\right.\]