Decorated square paths at q=-1

Sylvie Corteel, Alexander Lazar, Anna Vanden Wyngaerd

The valley Delta square conjecture states that the symmetric function $\frac{[n-k{]}_q}{[n{]}_q}\hat{I}{”}_{e_{n-k}}\ddot{I}‰(p_n)$ can be expressed as the enumerator of a certain class of decorated…