Sergei Yakovenko's blog: on Math and Teaching

Wednesday, December 19, 2007

“Auxiliary Lesson” שעור עזר) #9) Dec. 20, 2007

Dynamics generated by finitely generated subgroups of conformal germs

  1. Generic subgroups of \text{Diff}(\mathbb C^1,0) are non-solvable.
  2. Dynamics generated by several germs. Definition of a pseudogroup. Orbits of points.
  3. Periodicity of germs (finiteness of order) vs. periodicity of orbits. Cycles and limit cycles of pseudogroups.
  4. Convergence of elements in pseudogroups. Closure.
  5. Density of orbits. Linear subgroups. Abundance of limit cycles for generic (nonsolvable) subgroups of \text{Diff}(\mathbb C^1,0).
  6. Topological equivalence of subgroups and pseudogroups. Conjugacy of dense linear subgroups.
  7. Rigidity of nonsolvable subgroups: topological conjugacy implies holomorphic conjugacy.

Disclaimer… if somebody still needs it… 😦
Reading: Section 6 (second part) from the book, printing disabled.

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