2 papers
math.CO2026
Generalized snake posets, order polytopes, and lattice-point enumeration
Eon Lee, Andrés R. Vindas-Meléndez, Zhi Wang
Building from the work of von Bell et al.~(2022), we study the Ehrhart theory of order polytopes arising from a special class of distributive lattices, known as generalized snake p…
math.CO2025
Stack-sorting simplices: geometry and lattice-point enumeration
Eon Lee, Carson Mitchell, Andrés R. Vindas-Meléndez
We initiate the study of subpolytopes of the permutahedron that arise as the convex hulls of stack-sorting on permutations. We primarily focus on permutations, i.e., permutat…