Invariance of stretching and expansion s
✍
Yves Elskens
📂
Article
📅
1997
🏛
Elsevier Science
🌐
English
⚖ 203 KB
The local stretching rate a expresses the logarithmic divergence of trajectories along the local unstable manifold in phase space. We show that its distribution S(a) in an ergodic component is invariant with respect to the initial condition (almost surely) but depends on the coordinate system in whi