We present a family of Eulerian posets which does not have any R-labeling. The result uses a structure theorem for R-labelings of the butterfly poset.
|Number of pages||6|
|State||Published - Nov 2011|
Bibliographical noteFunding Information:
The first author was partially funded by National Science Foundation grant DMS-0902063.
- Butterfly poset
- Non-negative flag h-vector
- Triple assignment
ASJC Scopus subject areas
- Algebra and Number Theory
- Geometry and Topology
- Computational Theory and Mathematics