Composition closed premodel structures and the Kreweras lattice

Scott Balchin, Ethan MacBrough, Kyle Ormsby

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1 Citation (Scopus)

Abstract

We investigate the rich combinatorial structure of premodel structures on finite lattices whose weak equivalences are closed under composition. We prove that there is a natural refinement of the inclusion order of weak factorization systems so that the intervals detect these composition closed premodel structures. In the case that the lattice in question is a finite total order, this natural order retrieves the Kreweras lattice of noncrossing partitions as a refinement of the Tamari lattice, and model structures can be identified with certain tricolored trees.
Original languageEnglish
Article number103879
JournalEuropean Journal of Combinatorics
Volume116
Early online date15 Nov 2023
DOIs
Publication statusPublished - Feb 2024

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