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math.CO2023
Schur rings over infinite dihedral group
Gang Chen, Jiawei He, Zhiman Wu
Schur rings over the infinite dihedral group are studied according to properties of Schur rings over infinite groups and the classification of Sch…
math.CO2020
A characterization of exceptional pseudocyclic association schemes by multidimensional intersection numbers
Gang Chen, Jiawei He, Ilia Ponomarenko +1
Recent classification of -transitive permutation groups leaves us with three infinite families of groups which are neither -transitive, nor Frobenius, nor one-dimen…