Two types of chaos in nonlinear mechanics
The author explains that chaos in deterministic mechanical systems can occur due to two different types of instability, namely, either by a Lyapunov type instability or a Hadamard type instability. In the definition of the author the former leads to weak and the latter to strong chaos. Geometrical explanations and physical examples of both types are given.
scientific article; zbMATH DE number 3936619