J. Aust. Math. Soc.  81 (2006), 245-252
Maximal compatible extensions of partial orders

Stephan Foldes
  Institute of Mathematics
  Tampere University of Technology
  PL 553
  33101 Tampere
  Finnland
  stephan.foldes@tut.fi
and
Jenö Szigeti
  Institute of Mathematics
  University of Miskolc
  Miskolc 3515
  Hungary
  jeno.szigeti@uni-miskolc.hu


Abstract
We give a complete description of maximal compatible partial orders on the mono-unary algebra $(A,f)$, where $f:A\to A$ is an arbitrary unary operation.
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