Hyperbolicity and Astigmatism

Author: Bunimovich L.A.  

Publisher: Springer Publishing Company

ISSN: 0022-4715

Source: Journal of Statistical Physics, Vol.101, Iss.1-2, 2000-10, pp. : 373-384

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Abstract

We study the mechanism of hyperbolicity in high-dimensional Hamiltonian systems. Especially we consider ergodic billiards with focusing components in dimensions d3. In this case astigmatism serves as an obstacle to hyperbolicity in billiards with large focusing components. The notion of absolutely focusing mirrors is extended to the dimensions d3 and the first classes of ergodic billiards with both focusing and dispersing components are constructed in d3.