DOAJ
Open Access
2021
A Note on Graphs of Dichromatic Number 2
Raphael Steiner
Abstrak
Neumann-Lara and Škrekovski conjectured that every planar digraph is 2-colourable. We show that this conjecture is equivalent to the more general statement that all oriented K_5-minor-free graphs are 2-colourable.
Topik & Kata Kunci
Penulis (1)
R
Raphael Steiner
Akses Cepat
Informasi Jurnal
- Tahun Terbit
- 2021
- Sumber Database
- DOAJ
- DOI
- 10.23638/DMTCS-22-4-11
- Akses
- Open Access ✓