Displaying similar documents to “Homotopy 2-regular mappings whose inverses are open 3-cells”

Homeomorphisms of fractafolds

Ying Ying Chan, Robert S. Strichartz (2010)

Fundamenta Mathematicae

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We classify all homeomorphisms of the double cover of the Sierpiński gasket in n dimensions. We show that there is a unique homeomorphism mapping any cell to any other cell with prescribed mapping of boundary points, and any homeomorphism is either a permutation of a finite number of topological cells or a mapping of infinite order with one or two fixed points. In contrast we show that any compact fractafold based on the level-3 Sierpiński gasket is topologically rigid.