3 problems

Let $\mathcal{M}_{n,k}$ be the momentum amplituhedron, and let $\mathcal{S}_{n,k}$ consist of the decorated permutations whose strata are boundary strata, together with the decorat…

Exponent-one locally modularity conjecture. Every distal locally modular geometric structure admits distal cell decompositions of exponent $1$.

Let $\operatorname{OG}_{\ge0}(n,2n)$ be the positive orthogonal Grassmannian, with cell decomposition … where the cells are indexed by matchings $\tau$ on $[2n]$, and the cell inde…