The 3-colorability of planar graphs without cycles of length 4, 6 and 9
arXiv:1506.04629
Abstract
In this paper, we prove that planar graphs without cycles of length 4, 6, 9 are 3-colorable.
arXiv comment15 pages, 1 figure
arXiv:1506.04629
In this paper, we prove that planar graphs without cycles of length 4, 6, 9 are 3-colorable.
arXiv comment15 pages, 1 figure