In addition to writing Java books for Apress, Jeff has written numerous articles on Java and other technologies for JavaWorld, InformIT, Java.net, and SitePoint.

We prove that this representation of Green's function satisfies the Helmholtz equation with the quasi-periodic condition and, furthermore, leads to a fast algorithm for its application as an operator.

GUILLAUME CHÈZE, A RECOMBINATION ALGORITHM FOR THE DECOMPOSITION OF MULTIVARIATE RATIONAL FUNCTIONS, Mathematics of Computation, Vol. 82, No. 283 (JULY 2013), pp. 1793-1812 ...