Title of article
Flag Vectors of Eulerian Partially Ordered Sets
Author/Authors
Bayer، نويسنده , , Margaret M. and Hetyei، نويسنده , , Gلbor، نويسنده ,
Issue Information
روزنامه با شماره پیاپی سال 2001
Pages
22
From page
5
To page
26
Abstract
The closed cone of flag vectors of Eulerian partially ordered sets is studied. A new family of linear inequalities valid for Eulerian flag vectors is given. Half-Eulerian posets are defined. Certain limit posets of Billera and Hetyei are half-Eulerian; they give rise to extreme rays of the cone for Eulerian posets. Other extreme posets are formed from consideration of the cd -index. The cone of Eulerian flag vectors is completely determined up through rank seven.
Journal title
European Journal of Combinatorics
Serial Year
2001
Journal title
European Journal of Combinatorics
Record number
1545758
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