<p>Let <i>A</i> be an annulus in the plane <InlineEquation ID="IEq1"> <EquationSource Format="TEX">\({\mathbb {R}}^2\)</EquationSource> <EquationSource Format="MATHML"><math> <msup> <mrow> <mi mathvariant="double-struck">R</mi> </mrow> <mn>2</mn> </msup> </math></EquationSource> </InlineEquation> and <InlineEquation ID="IEq2"> <EquationSource Format="TEX">\(g:A\rightarrow A\)</EquationSource> <EquationSource Format="MATHML"><math> <mrow> <mi>g</mi> <mo>:</mo> <mi>A</mi> <mo stretchy="false">→</mo> <mi>A</mi> </mrow> </math></EquationSource> </InlineEquation> be a boundary components preserving homeomorphism which is distal and has no periodic points. Then there is a continuous decomposition of <i>A</i> into <i>g</i>-invariant circles such that all the restrictions of <i>g</i> on them share a common irrational rotation number and all these circles are linearly ordered by the inclusion relation on the sets of bounded components of their complements in <InlineEquation ID="IEq3"> <EquationSource Format="TEX">\({\mathbb {R}}^2\)</EquationSource> <EquationSource Format="MATHML"><math> <msup> <mrow> <mi mathvariant="double-struck">R</mi> </mrow> <mn>2</mn> </msup> </math></EquationSource> </InlineEquation>. Finally, we show that <i>g</i> is conjugate to an irrational rotation if and only if there exists a transversal and examples without transversals are also constructed.</p>

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The structure of periodic point free distal homeomorphisms on the annulus

  • Enhui Shi,
  • Hui Xu,
  • Ziqi YU

摘要

Let A be an annulus in the plane \({\mathbb {R}}^2\) R 2 and \(g:A\rightarrow A\) g : A A be a boundary components preserving homeomorphism which is distal and has no periodic points. Then there is a continuous decomposition of A into g-invariant circles such that all the restrictions of g on them share a common irrational rotation number and all these circles are linearly ordered by the inclusion relation on the sets of bounded components of their complements in \({\mathbb {R}}^2\) R 2 . Finally, we show that g is conjugate to an irrational rotation if and only if there exists a transversal and examples without transversals are also constructed.