that almost any cut, as long as it is made transverse to the direction of the orbital trajectories, is equally valid and useful for further analyses (Oseledec, 1968). If the original embedding and subsequence section was in high enough dimension to allow invertability, we might have enough (trial and error)

d another kind of stability issue with a similar appellation yielding other direction specific indices, the Lyapounov characteristic exponents, 42 (Oseledec, 1968; Eckmann and Ruelle, 1985; Ruelle, 1990; Ott et al, 1994). In this context, the instability is not one of perturbative escape from a fixed poin