Geometric view of interval poset permutations
Abstract
In a recent study by Tenner, the concept of the interval poset of a permutation is introduced to effectively represent all intervals and their inclusions within a permutation. This research presents a new geometric viewpoint on these interval posets. We establish a one-to-one correspondence between the set of interval posets for permutations of size $n$ and a specific subset of dissections of a convex polygon with $n+1$ sides. Through this correspondence, we investigate various intriguing subsets of interval posets and uncover their connections to particular polygon dissections.
- Publication:
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arXiv e-prints
- Pub Date:
- November 2024
- DOI:
- 10.48550/arXiv.2411.13193
- arXiv:
- arXiv:2411.13193
- Bibcode:
- 2024arXiv241113193B
- Keywords:
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- Mathematics - Combinatorics
- E-Print:
- arXiv admin note: substantial text overlap with arXiv:2406.16392