Work

Beyond halfway to Hadwiger's conjecture

Year: 2026
Type: preprint
Abstract: Hadwiger conjectured in 1943 that every graph with no $K_t$ minor has chromatic number at most $t-1$. Delcourt and Postle proved that every graph with no $K_t$ minor has chromatic number $O(t\log\log t)$. We build on their result to improve this bound to $O(t\log\log\log t)$.
Language: English
Open Access status: green
OpenAlex ID: W7212026773
Cites: 4
Cited by: 5
Related to: 10