We consider Non-local Gravity in view to obtain stable and traversable wormhole solutions. In particular, the class of Integral Kernel Theories Gravity, with inverse d'Alembert operator gravitational action, is taken into account. constraints for null energy condition derive field equations. Two special cases related Klein-Gordon equation are assumed: one where function action has a linear form...

– We derive a closed equation for the shape of the free surface of a magnetic fluid subject to an external magnetic field. The equation is strongly non-local due to the long range character of the magnetic interaction. We develop a systematic multiple scale perturbation expansion in which the non-locality is reduced to the occurrence of the Hilbert transform of the surface profile. The resultin...