2 problems

Let $B$ be a $k$-row reduced bumpless pipe dream such that row $k$ has no blanks (“weighty tiles”). Let $\phi(B)$ be the RC graph corresponding to $B$ under the natural bijection b…

Bumpless pipe dreams are related to RC graphs by a bijection: for a bumpless pipe dream $B$ with $n$ rows, let $cphi(B)$ denote the corresponding RC graph, and let $\mathcal{Z}$ be…