Mathematics – Differential Geometry
Scientific paper
2011-03-18
Mathematics
Differential Geometry
9 pages
Scientific paper
It is well-known that any isotopically connected diffeomorphism group $G$ of a manifold determines uniquely a singular foliation $\F_G$. A one-to-one correspondence between the class of singular foliations and a subclass of diffeomorphism groups is established. As an illustration of this correspondence it is shown that the commutator subgroup $[G,G]$ of an isotopically connected, factorizable and non-fixing $C^r$-diffeomorphism group $G$ is simple iff the foliation $\F_{[G,G]}$ defined by $[G,G]$ admits no proper minimal sets. In particular, the compactly supported $e$-component of the leaf preserving $C^{\infty}$-diffeomorphism group of a regular foliation $\F$ is simple iff $\F$ has no proper minimal sets.
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