“…Let h: 0_I_R Ä R be a locally Lipschitz continuous function which is T-periodic in t; that is, h(x, 0, u)=h(x, T, u) for all (x, u) # 0_R, and for each u # R there exist a (closed) interval U/R about u and a number M>0 such that |h(x, t, v)&h( y, s, w)| M(|x&y| 2 +|t&s|+ |v&w| 2 ) 1Â2 (6) for all (x, t, v), ( y, s, w) # 0_I_U. (Note that, strictly speaking, the function h(x, }, u) is (1Â2)-Ho lder continuous in the variable t, uniformly for (x, u) # 0_U.)…”