J. Korean Math. Soc. 1996; 33(1): 47-55
Printed March 1, 1996
Copyright © The Korean Mathematical Society.
Hong Oh Kim, Jun Kyo Kim, and Jong Wan Kim
KAIST, KAIST, and KAIST
The set of points on the interval $[-\pi, \pi]$ which are not attracted to zero under the succesive iterations of the function $T_\alpha(\theta) = \alpha \tan(\theta/2)$ is a Cantor set $C(\alpha)$, a closed , totally disconnected, perfect subset of $[-\pi, \pi]$ if $0 < \alpha < 2$. The Lebesgue measure of $C(\alpha)$ is shown to be of order 5 analytically and of order 7 by use of MATHEMATICA as $\alpha \rightarrow 0$. It is a reasonable conjecture that it is of infinite order.
Keywords: Dynamics, Julia set, Cantor set
MSC numbers: 26A18
1996; 33(1): 39-46
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