A note on the zero divisor graph of the ring of Lipschitz integers modulo $n$

12 Aug 2020  ·  Zhang Hengbin ·

In a recent paper, Grau et al. (2017) studied the zero divisor graphs of the ring of Lipschitz integers modulo $n$, and computed the domination number of the undirected zero divisor graph of the ring of Lipschitz integers modulo $n$. But the case $n$ is a power of prime numbers remained open... In this note, this problem is solved. We also show the automorphism group of the zero divisor graph of the ring of Lipschitz integers modulo $2^s$. read more

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Combinatorics