Journal of Number Theory
Chung Fan, Ron Graham, Sam Spiro
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Preprint
Aug 2026
Optimal Transport on Graphs and Stochastically Evolving Trees
We give an effective algorithm for determining the transportation distance between two given probability density functions defined on the vertices of a graph $G=(V,E)$ by analyzing an associated polytope. The vertices of the polytope correspond to feasible flows on spanning trees in $G$, and the $1$-skeleton of the pol...
Chung Fan, Sawyer Jack Robertson
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