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  • Je známo, že pro spojitá zobrazení $\varphi$ na intervalu je podmínka P1 $\varphi$ má nulovou topologickou entropii, ekvivalentní s každou z následujících: P2 každá $\omega$-limitní množina obsahuje jedinou minimální množinu; P3 perioda každého cyklu je mocnina dvou; P4 každá $\omega$-limitní množina je cyklus nebo žádný cyklus neobsahuje; P5 jestliže $\omega_\varphi(\xi)=\omega_{\varphi^2}(\xi)$, pak $\omega_\varphi (\xi)$ je pevný bod; P6 $\varphi$ nemá žádné homoklinické trajektorie; P7 neexistují žádné nekonečné spočetné $omega$-limitní množiny; P8 trajektorie každých dvou bodů jsou korelované; P9 neexistuje žádná uzavřená invariantní podmnožina $A$ taková, aby pro nějaké přirozené číslo $m$ bylo zobrazení $\varphi ^m|A$ topologicky skoro konjugované s shiftem. V tomto článku ukazujeme vztahy mezi těmito vlastnostmi pro třídu $(x,y)\mapsto (f(x),g_x(y))$ trojúhelníkových zobrazení na čtverci. Tento výsledek přispívá k vyřešení dlouhotrvajícího otevřeného Sharkovského problému. (cs)
  • It is well-known that, for a continuous map $\varphi$ of the interval, the condition {P1} $\varphi$ has zero topological entropy, is equivalent, e.g., to any of the following: { P2} any $\omega $-limit set contains a unique minimal set; { P3} the period of any cycle of $\varphi$ is a power of two; { P4} any $\omega$-limit set either is a cycle or contains no cycle; {P5} if $\omega _\varphi(\xi)=\omega_{\varphi^2}(\xi)$, then $\omega_\varphi (\xi)$ is a fixed point; {P6} $\varphi $ has no homoclinic trajectory; {P7} there is no countably infinite $\omega$-limit set; {P8} trajectories of any two points are correlated; {P9} there is no closed invariant subset $A$ such that $\varphi ^m|A$ is topologically almost conjugate to the shift, for some $m\ge 1$. In the paper we exhibit the relations between these properties in the class $(x,y)\mapsto (f(x),g_x(y))$ of triangular maps of the square. This contributes to the solution of a longstanding open problem of Sharkovsky.
  • It is well-known that, for a continuous map $\varphi$ of the interval, the condition {P1} $\varphi$ has zero topological entropy, is equivalent, e.g., to any of the following: { P2} any $\omega $-limit set contains a unique minimal set; { P3} the period of any cycle of $\varphi$ is a power of two; { P4} any $\omega$-limit set either is a cycle or contains no cycle; {P5} if $\omega _\varphi(\xi)=\omega_{\varphi^2}(\xi)$, then $\omega_\varphi (\xi)$ is a fixed point; {P6} $\varphi $ has no homoclinic trajectory; {P7} there is no countably infinite $\omega$-limit set; {P8} trajectories of any two points are correlated; {P9} there is no closed invariant subset $A$ such that $\varphi ^m|A$ is topologically almost conjugate to the shift, for some $m\ge 1$. In the paper we exhibit the relations between these properties in the class $(x,y)\mapsto (f(x),g_x(y))$ of triangular maps of the square. This contributes to the solution of a longstanding open problem of Sharkovsky. (en)
Title
  • A classification of triangular maps of the square
  • Klasifikace trojúhelníkových zobrazení na čtverci (cs)
  • A classification of triangular maps of the square (en)
skos:prefLabel
  • A classification of triangular maps of the square
  • Klasifikace trojúhelníkových zobrazení na čtverci (cs)
  • A classification of triangular maps of the square (en)
skos:notation
  • RIV/47813059:19610/06:#0000097!RIV07-GA0-19610___
http://linked.open.../vavai/riv/strany
  • 241-252
http://linked.open...avai/riv/aktivita
http://linked.open...avai/riv/aktivity
  • P(GA201/03/1153), Z(MSM4781305904)
http://linked.open...iv/cisloPeriodika
  • 2
http://linked.open...vai/riv/dodaniDat
http://linked.open...aciTvurceVysledku
http://linked.open.../riv/druhVysledku
http://linked.open...iv/duvernostUdaju
http://linked.open...titaPredkladatele
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  • 463427
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  • RIV/47813059:19610/06:#0000097
http://linked.open...riv/jazykVysledku
http://linked.open.../riv/klicovaSlova
  • triangular map; topological entropy; w-limit set (en)
http://linked.open.../riv/klicoveSlovo
http://linked.open...odStatuVydavatele
  • SK - Slovenská republika
http://linked.open...ontrolniKodProRIV
  • [7C02E498183F]
http://linked.open...i/riv/nazevZdroje
  • Acta Mathematica Universitatis Comenianae
http://linked.open...in/vavai/riv/obor
http://linked.open...ichTvurcuVysledku
http://linked.open...cetTvurcuVysledku
http://linked.open...vavai/riv/projekt
http://linked.open...UplatneniVysledku
http://linked.open...v/svazekPeriodika
  • 75
http://linked.open...iv/tvurceVysledku
  • Kornecká, Veronika
http://linked.open...n/vavai/riv/zamer
issn
  • 0862-9544
number of pages
http://localhost/t...ganizacniJednotka
  • 19610
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