منابع مشابه
Homomorphisms between Diffeomorphism Groups
For r ≥ 3, p ≥ 2, we classify all actions of the groups Diffc(R) and Diff+(S) by Cdiffeomorphisms on the line and on the circle. This is the same as describing all nontrivial group homomorphisms between groups of compactly supported diffeomorphisms on 1-manifolds. We show that all such actions have an elementary form, which we call topologically diagonal. As an application, we answer a question...
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ژورنال
عنوان ژورنال: Illinois Journal of Mathematics
سال: 1974
ISSN: 0019-2082
DOI: 10.1215/ijm/1256051009