2 papers
math.CO2026
On circulant ternary coherent configurations of prime degree
Gang Chen, Qing Ren, Ilia Ponomarenko
Ternary coherent configurations are, on the one hand, a special case of multidimensional coherent configurations introduced by L. Babai (2016), and, on the other hand, a natural ge…
math.CO2025
A lower bound for the Weisfeiler-Leman dimension of circulant graphs
Yulai Wu, Qing Ren, Ilia Ponomarenko
It is proved that for infinitely many positive integers n, there exists a circulant graph of order n whose Weisfeiler-Leman dimension is at least c\sqrt{log n} for some positive co…