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arXiv · 1906.09469

On Schur Rings over Infinite Groups III

Nicholas Bastian·Andrew Misseldine
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Abstract

In the paper, we develop further the properties of Schur rings over infinite groups, with particular emphasis on the virtually cyclic group $\Z\times\Z_p$, where $p$ is a prime. We provide structure theorems for primitive sets in these Schur rings. In the case of Fermat and safe primes, a complete classification theorem is proven, which states that all Schur rings over $\Z\times\Z_p$ are traditional. We also draw analogs between Schur rings over $\Z\times\Z_p$ and partitions of difference sets over $\Z_p$.

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Nicholas Bastian, Andrew Misseldine. 2019-06-22. On Schur Rings over Infinite Groups III. https://doi.org/10.1007/s10801?023?01273?z

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