2 papers
math.CO2026
A Chain-Level Borsuk--Ulam Obstruction Proof of Norine's Antipodal-Coloring Conjecture
Hehui Wu, Ningyuan Yang
We prove Norine's conjecture: every red--blue edge-coloring of the \(n\)-dimensional hypercube \(Q_n\), \(n\geq2\), in which antipodal edges have opposite colors contains a monochr…
math.CO2026
Irregular subgraph in a regular graph
Tianyue Cao, Quanyu Tang, Hehui Wu
A conjecture of Alon and Wei states that, for any -regular graph with vertices, there exists a spanning subgraph such that for all , we have ,…