<p>For non-negative real numbers <i>r</i> and <InlineEquation ID="IEq1"> <InlineMediaObject> <ImageObject Color="BlackWhite" FileRef="10883_2024_9723_Article_IEq1.gif" Format="GIF" Height="12" Rendition="HTML" Resolution="72" Type="Linedraw" Width="13" /> </InlineMediaObject> <EquationSource Format="TEX">\(\rho \)</EquationSource> <EquationSource Format="MATHML"><math> <mi>ρ</mi> </math></EquationSource> </InlineEquation>, with <InlineEquation ID="IEq2"> <InlineMediaObject> <ImageObject Color="BlackWhite" FileRef="10883_2024_9723_Article_IEq2.gif" Format="GIF" Height="16" Rendition="HTML" Resolution="72" Type="Linedraw" Width="74" /> </InlineMediaObject> <EquationSource Format="TEX">\(r&lt; 1 &lt; \rho \)</EquationSource> <EquationSource Format="MATHML"><math> <mrow> <mi>r</mi> <mo>&lt;</mo> <mn>1</mn> <mo>&lt;</mo> <mi>ρ</mi> </mrow> </math></EquationSource> </InlineEquation>, let <InlineEquation ID="IEq3"> <InlineMediaObject> <ImageObject Color="BlackWhite" FileRef="10883_2024_9723_Article_IEq3.gif" Format="GIF" Height="19" Rendition="HTML" Resolution="72" Type="Linedraw" Width="29" /> </InlineMediaObject> <EquationSource Format="TEX">\(L_{r,\rho }\)</EquationSource> <EquationSource Format="MATHML"><math> <msub> <mi>L</mi> <mrow> <mi>r</mi> <mo>,</mo> <mi>ρ</mi> </mrow> </msub> </math></EquationSource> </InlineEquation> be the union of two straight line segments in <InlineEquation ID="IEq4"> <InlineMediaObject> <ImageObject Color="BlackWhite" FileRef="10883_2024_9723_Article_IEq4.gif" Format="GIF" Height="19" Rendition="HTML" Resolution="72" Type="Linedraw" Width="87" /> </InlineMediaObject> <EquationSource Format="TEX">\([0,1]\times [0,1]\)</EquationSource> <EquationSource Format="MATHML"><math> <mrow> <mo stretchy="false">[</mo> <mn>0</mn> <mo>,</mo> <mn>1</mn> <mo stretchy="false">]</mo> <mo>×</mo> <mo stretchy="false">[</mo> <mn>0</mn> <mo>,</mo> <mn>1</mn> <mo stretchy="false">]</mo> </mrow> </math></EquationSource> </InlineEquation> with slopes <i>r</i> and <InlineEquation ID="IEq5"> <InlineMediaObject> <ImageObject Color="BlackWhite" FileRef="10883_2024_9723_Article_IEq5.gif" Format="GIF" Height="12" Rendition="HTML" Resolution="72" Type="Linedraw" Width="13" /> </InlineMediaObject> <EquationSource Format="TEX">\(\rho \)</EquationSource> <EquationSource Format="MATHML"><math> <mi>ρ</mi> </math></EquationSource> </InlineEquation>, one from (0,&#xa0;0) to (1,&#xa0;<i>r</i>) and the other from (0,&#xa0;0) to <InlineEquation ID="IEq6"> <InlineMediaObject> <ImageObject Color="BlackWhite" FileRef="10883_2024_9723_Article_IEq6.gif" Format="GIF" Height="25" Rendition="HTML" Resolution="72" Type="Linedraw" Width="38" /> </InlineMediaObject> <EquationSource Format="TEX">\((\frac{1}{\rho },0)\)</EquationSource> <EquationSource Format="MATHML"><math> <mrow> <mo stretchy="false">(</mo> <mfrac> <mn>1</mn> <mi>ρ</mi> </mfrac> <mo>,</mo> <mn>0</mn> <mo stretchy="false">)</mo> </mrow> </math></EquationSource> </InlineEquation>. Recent work in Banič et al. (<CitationRef CitationID="CR2">2024</CitationRef>) and Gril Rogina (J Dyn Control Syst. <CitationRef CitationID="CR13">2023</CitationRef>;29:1525–45) gives a partial characterization of the forward Mahavier products of such closed relations. But this work in Banič et al. (<CitationRef CitationID="CR2">2024</CitationRef>) and Gril Rogina (J Dyn Control Syst. <CitationRef CitationID="CR13">2023</CitationRef>;29:1525–45) leaves open the problem of whether certain classes of these Mahavier products contain any pairwise homeomorphic continua. In this paper, we show that any two of the continua in the above mentioned classes are homeomorphic, thus completing the classification of these Mahavier products.</p>

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The Classification of Two Lines Mahavier Products

  • Rene Gril Rogina,
  • Will Brian

摘要

For non-negative real numbers r and \(\rho \) ρ , with \(r< 1 < \rho \) r < 1 < ρ , let \(L_{r,\rho }\) L r , ρ be the union of two straight line segments in \([0,1]\times [0,1]\) [ 0 , 1 ] × [ 0 , 1 ] with slopes r and \(\rho \) ρ , one from (0, 0) to (1, r) and the other from (0, 0) to \((\frac{1}{\rho },0)\) ( 1 ρ , 0 ) . Recent work in Banič et al. (2024) and Gril Rogina (J Dyn Control Syst. 2023;29:1525–45) gives a partial characterization of the forward Mahavier products of such closed relations. But this work in Banič et al. (2024) and Gril Rogina (J Dyn Control Syst. 2023;29:1525–45) leaves open the problem of whether certain classes of these Mahavier products contain any pairwise homeomorphic continua. In this paper, we show that any two of the continua in the above mentioned classes are homeomorphic, thus completing the classification of these Mahavier products.