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Published online by Cambridge University Press: 09 July 2012
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.