For a partially ordered set $P$ let us denote by $Co P$ the system of all convex subsets of $P$. It is found the necessary and sufficient condition (concerning $P$) under which $Co P$ (as a partially ordered set) is selfdual.
@article{118617, author = {Miron Zelina}, title = {Selfduality of the system of convex subsets of a partially ordered set}, journal = {Commentationes Mathematicae Universitatis Carolinae}, volume = {34}, year = {1993}, pages = {593-595}, zbl = {0784.06002}, mrnumber = {1243092}, language = {en}, url = {http://dml.mathdoc.fr/item/118617} }
Zelina, Miron. Selfduality of the system of convex subsets of a partially ordered set. Commentationes Mathematicae Universitatis Carolinae, Tome 34 (1993) pp. 593-595. http://gdmltest.u-ga.fr/item/118617/
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