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math.GR2020
Schur Rings over Z \times Z_3
Gang Chen, Jiawei He
For the direct product $\cZ\times \cZ_3$ of infinite cyclic group $\cZ$ and a cyclic group $\cZ_3$ of order , the schur rings over it are classified. In particular, all the schu…
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…