Pointwise-recurrent dendrite maps
Pointwise-recurrent dendrite maps
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DOI:
10.1017/s0143385712000296
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发表时间:
2011-08
影响因子:
0.9
通讯作者:
I. Naghmouchi
中科院分区:
文献类型:
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作者:
I. Naghmouchi
Abstract Let $D$ be a dendrite and $f:D\rightarrow D$ a continuous map. Denote by $E(D)$ and $B(D)$ the sets of endpoints and branch points of $D$, respectively. We show that if $E(D)$ is countable, then $f$ is pointwise-recurrent if and only if $f$ is a pointwise-periodic homeomorphism; also, if $B(D)$ is discrete, then $f$ is pointwise-recurrent if and only if every point in $D\backslash E(D)$is periodic.