On the Weisfeiler-Leman dimension of permutation graphs
Jin Guo, Alexander L. Gavrilyuk, Ilia Ponomarenko·2023-05-25·via math.CO updates on arXiv.org
It is proved that the Weisfeiler-Leman dimension of the class of permutation graphs is at most 18. Previously it was only known that this dimension is finite (Grußien, 2017).