The usual approach to the ergodic problem makes use of the idea of "coarse-graining". That is, a macroscopic observer is supposed to be limited to "coarse-grained" experiments, and the resultant lack… Expand

Abstract We consider the numerical solution of the one-dimensional Schrodinger equation in a potential of the type occurring in molecular spectroscopy, i.e., with both an inner and an outer classical… Expand

Equations taking into account the Coulomb potential generated by the charge density of the electrons plus an assumed uniform background of positive charge were solved for a superconducting slab.… Expand

Under the 1984 Sino-British Joint Declaration on the future of Hong Kong the previous capitalist system and life-style shall remain unchanged for 50 years. This concept has been embedded in the Basic… Expand

The Pontryagin theory of optimal control is modified by assuming a positive cost associated with switching control from one discrete value to another. The resulting new theory permits a general… Expand