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Shareshian–Wachs q-analogue of the Stanley–Stembridge conjecture
Shareshian–Wachs conjecture. If $G$ is the incomparability graph of a natural unit interval order, then $X_G(\mathbf{x},q)$ is $e$ -positive.
Conjectureopenchromatic-quasisymmetric-functions natural-unit-interval-orders symmetric-functionsarXiv posted 2 days ago

Shareshian–Wachs q-analogue of the Stanley–Stembridge conjecture