The real dynamics of Bieberbach’s example. (English) Zbl 1360.37057
Summary: Bieberbach constructed, in 1933, domains in \({\mathbb {C}}^2\) which were biholomorphic to \({\mathbb {C}}^2\) but not dense. The existence of such domains was unexpected. The special domains Bieberbach considered are basins of attraction of a cubic Hénon map. This classical method of construction is one of the first applications of dynamical systems to complex analysis. In this paper, the boundaries of the real sections of Bieberbach’s domains will be calculated explicitly as the stable manifolds of the saddle points. The real filled Julia sets and the real Julia sets of Bieberbach’s map will also be calculated explicitly and illustrated with computer generated graphics. Basic differences between real and the complex dynamics will be shown.
MSC:
| 37C05 | Dynamical systems involving smooth mappings and diffeomorphisms |
| 37C25 | Fixed points and periodic points of dynamical systems; fixed-point index theory; local dynamics |
| 37E30 | Dynamical systems involving homeomorphisms and diffeomorphisms of planes and surfaces |
| 32H50 | Iteration of holomorphic maps, fixed points of holomorphic maps and related problems for several complex variables |
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