e-positivity conjecture for generalized natural unit interval orders
Let be the natural unit interval order associated with a sequence , and let be its incomparability graph. Let denote the chromatic quasisymmetric function of . Generalized three-parameter e-positivity conjecture. The function is -positive.
This extends the preceding conjectural family by allowing the first three entries of to vary. The source does not specify whether the conjecture has been resolved.
References
Primary source
Angèle M. Foley, Joshua Kazdan, Larissa Kröll, Sofía Martínez Alberga, Oleksii Melnyk and Alexander Tenenbaum, “Spiders and their Kin: An Investigation of Stanley's Chromatic Symmetric Function for Spiders and Related Graphs”, arXiv:1812.03476 (2022).
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