A Monte Carlo study is made of the mean-square radius of gyration for the freely rotating chain with such fictitious excluded-volume interactions that the Lennard-Jones 6-12 potentials at the Theta temperature act only between the fourth-through (3+Delta)th-neighbor beads (Delta > or = 1) along the chain. The behavior of the asymptotic value (/n)infinity of the ratio /n as a functi...

One possible way to solve a partial differential equation in an irregular region X is the use of the so-called domain embedding methods, in where the domain of interest is embedded within a rectangle. In order to apply a Fourier spectral method on the rectangle, the inhomogeneous term f(x,y) has to be extended to a new function g(x,y) that is periodic and infinitely differentiable, and equal to...