Hedetniemi's conjecture from the topological viewpoint

Hamid Reza Daneshpajouh, Roman Karasev, Alexey Yu. Volovikov

This paper is devoted to studying a topological version of the famous Hedetniemi conjecture which says: The $\mathbb{Z}/2$-index of the Cartesian product of two $\mathbb{Z}/2$-spaces…