A note on the Three Color Problem on planar graphs without 4- and 5-cycles and without ext-triangular 7-cycles

Zuosong Liang, Guangjun Xu, Chunsong Bai. A note on the Three Color Problem on planar graphs without 4- and 5-cycles and without ext-triangular 7-cycles. Discrete Mathematics, 346(1):113192, 2023. [doi]

Abstract

Abstract is missing.