Geodesic
A note on Möbius functions of upho posets
Sam Hopkins1
1Howard University
The electronic journal of combinatorics, Tome 29 (2022) no. 2

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Zbl DOI arXiv
A poset is called upper homogeneous (or "upho") if every principal order filter of the poset is isomorphic to the whole poset. We observe that the rank and characteristic generating functions of upho posets are multiplicative inverses of one another.
DOI : 10.37236/11084
Classification : 06A07, 05A19

Sam Hopkins  1

1 Howard University 
Sam Hopkins. A note on Möbius functions of upho posets. The electronic journal of combinatorics, Tome 29 (2022) no. 2. doi: 10.37236/11084
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