Periodic algorithm for 1/r
The periodic algorithm is correct only for fast decaying kernels i.e., r^{-s} with s > 3.
It is therefore necessary to introduce an Ewald-like approach to solve the cases s=1 or s=2.
The periodic algorithm is correct only for fast decaying kernels i.e., r^{-s} with s > 3.
It is therefore necessary to introduce an Ewald-like approach to solve the cases s=1 or s=2.