论文标题
在Gardam和Murray的组中
On Gardam's and Murray's units in group rings
论文作者
论文摘要
我们表明，Gardam在无扭转的群环中发现的单位是扭曲的统一元素。这证明了Gardam的建筑中一些可能似乎是任意的选择，并产生了更多单位示例。我们注意到，所有最新的单元都表现出非平凡的对称性。
We show that the units found in torsion-free group rings by Gardam are twisted unitary elements. This justifies some choices in Gardam's construction that might have appeared arbitrary, and yields more examples of units. We note that all units found up to date exhibit non-trivial symmetry.
