ISSN:
1572-9273

Keywords:
06A06
;
Poset
;
circle order
;
dimension

Source:
Springer Online Journal Archives 1860-2000

Topics:
Mathematics

Notes:
Abstract The result stated in the title is proved in this note. Actually we show that S x N is not a circle order, where S={(1, 1), (1, 2), (1, 3), (2, 1), (2, 3)}. Furthermore this non-circle order is critical in the sense that (S-{x}) x N is a circle order for any x in S.

Type of Medium:
Electronic Resource

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