The global-branch positivity conjecture for higher-intersection promotions
Let be a tangle admitting a brushing, with and positive intersection number . Let be the associated space and let denote the totally positive Grassmannian. Global-branch positivity conjecture. One can choose a brushing and signs for which the higher-intersection positivity conjecture holds, and
is the disjoint union of a fixed number of graphs of functions from to . This remains open beyond the illustrated cases.
References
Primary source
Chaim Even-Zohar, Matteo Parisi, Melissa Sherman-Bennett, Ran Tessler and Lauren Williams, “Plabic Tangles and Cluster Promotion Maps”, arXiv:2508.02891 (2026).
Progress summary
Nothing recorded yet. Refresh searches the literature and the public web for attempts on this problem, and writes the first summary here.
Solutions 0
No solutions have been posted yet.