{3}{2}}{\sqrt {\frac {g}{h}}},} with δ(s) the Dirac delta function. BengtFornberg and Gerald Whitham studied the kernel Kfw(s) – non-dimensionalised using
dynamics, By Canuto, Hussaini, Quarteroni and Zang, Springer, 2007. BengtFornberg (1996) A Practical Guide to Pseudospectral Methods. Cambridge University
Atmospheric Research with a permanent appointment as a scientist. With BengtFornberg [fr], her husband, Flyer is the author of a book on radial basis functions