@Misc{ CinDavDel15, author = { Cinti, Eleonora and Davila, Juan and Del Pino, Manuel }, title = { Solutions of the fractional Allen-Cahn equation which are invariant under screw motion }, journal = { J. London Math. Soc. }, year = { 2015 }, pages = { }, URL = { http://cvgmt.sns.it/paper/2779/ }, note = { cvgmt preprint} }