A combinatorial model for the canonical join complex of alt ν-Tamari lattices proves vertex decomposability, shellability, and computes the homology.
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2026 2verdicts
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All lattice path matroids are Ehrhart positive, unifying prior results and implying positivity for Schubert matroids while supporting conjectures on positroids and Schubitopes.
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A combinatorial model for the canonical join complex of alt $\nu$-Tamari lattices
A combinatorial model for the canonical join complex of alt ν-Tamari lattices proves vertex decomposability, shellability, and computes the homology.
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Ehrhart positivity for lattice path matroids
All lattice path matroids are Ehrhart positive, unifying prior results and implying positivity for Schubert matroids while supporting conjectures on positroids and Schubitopes.