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MATHEMATICS
On topological classification of regular Denjoy type homeomorphisms
V. Z. Grines, D. I. Mints National Research University – Higher School of Economics in Nizhny Novgorod, Nizhny Novgorod, Russia
Abstract:
We consider regular Denjoy type homeomorphisms of the two-dimensional torus which are the most natural generalization of Denjoy homeomorphisms of the circle. In particular, they arise as Poincaré maps induced on global cross sections by leaves of one-dimensional orientable unstable foliations of some partially hyperbolic diffeomorphisms of closed three-dimensional manifolds. The nonwandering set of each regular Denjoy type homeomorphism is a Sierpiński set, and each such homeomorphism is, by definition, semiconjugate to the minimal translation on the two-dimensional torus. For regular Denjoy type homeomorphisms, we introduce a complete invariant of topological conjugacy characterized by the minimal translation, which is semiconjugate to the given regular Denjoy type homeomorphism, with a distinguished at most countable set of orbits.
Keywords:
topological classification, Denjoy type homeomorphism, Sierpiński set.
Citation:
V. Z. Grines, D. I. Mints, “On topological classification of regular Denjoy type homeomorphisms”, Dokl. RAN. Math. Inf. Proc. Upr., 505 (2022), 66–70; Dokl. Math., 106:1 (2022), 268–271
Linking options:
https://www.mathnet.ru/eng/danma280 https://www.mathnet.ru/eng/danma/v505/p66
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Abstract page: | 119 | References: | 22 |
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