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  1. ; (, Journal für die reine und angewandte Mathematik (Crelles Journal))
    Abstract LetXbe acompact orientable non-Haken 3-manifold modeled on the Thurston geometry Nil {\operatorname{Nil}}. We show that the diffeomorphism group Diff ⁡ ( X ) {\operatorname{Diff}(X)}deformation retracts to the isometry group Isom ⁡ ( X ) {\operatorname{Isom}(X)}. Combining this with earlier work by many authors, this completes the determination the homotopy type of Diff ⁡ ( X ) {\operatorname{Diff}(X)}for any compact, orientable, prime 3-manifoldX. 
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  2. (, Inventiones mathematicae)
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  3. ; ; ; (, Peking Mathematical Journal)
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