Wei-Ye Li

Positive formulas for q-Zeta numerators of Ferrers-cell posets

We give explicit positive formulas for Chapoton's $q$-Zeta numerators of the Ferrers-cell posets $F_{\mathbf b}=\{(i,c):1\leq i\leq r, i\leq c\leq b_i\}$, where $b_1\geq\cdots\geq b_r\geq r$, and for every interval of their minimum-augmented lattices. A constructive signed EL-labelling expresses the numerator as a desc...