  We construct Delaunay-type solutions for the fractional Yamabe problem with
an isolated singularity $(-\Delta)^\gamma w = c_{n, \gamma}
w^{\frac{n+2\gamma}{n-2\gamma}}, w>0 \ \mbox{in} \ \mathbb{R}^n \backslash
\{0\}$ We follow a variational approach, in which the key is the computation of
the fractional Laplacian in polar coordinates.
