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Farid Aliniaeifard, Shamil Asgarli, Maria Esipova, Ethan Shelburne, Stephanie van Willigenburg and Tamsen Whitehead McGinley, Chromatic Quasisymmetric Functions of the Path Graph, Annals of Combinatorics, 2025
Abstract:We show that the chromatic quasisymmetric function (CQF) of a labeled path graph on n vertices is not symmetric unless the labeling is the natural labeling or its reverse . We also show that the star graph with more than 2 vertices has a nonsymmetric CQF for all labelings.
https://doi.org/10.1007/s00026-025-00762-1
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