Bulletin of the London Mathematical Society Advance Access originally published online on July 14, 2008
Bulletin of the London Mathematical Society 2008 40(5):749-758; doi:10.1112/blms/bdn053
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© 2008 London Mathematical Society
S-integral preperiodic points for dynamical systems over number fields
CUNY Graduate Center
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Received 19 October 2007. Revision received 26 March 2008.
Given a rational map
:
1
1 defined over a number field K, we prove a finiteness result for
-preperiodic points which are S-integral with respect to a non-preperiodic point P, provided that P satisfies a certain local condition at each place. This verifies a special case of a conjecture of Ih.
2000 Mathematics Subject Classification 11G50, 11R04.