论文标题
Gorenstein全球维度的五个定理
Five theorems on Gorenstein global dimensions
论文作者
论文摘要
我们扩展了戈伦斯坦（弱）全球尺寸零环的两个现有表征，并给出了有限戈伦斯坦（弱）全球维度的两个新的表征。我们还包括Y. Y. Xiang的答案。
We expand on two existing characterizations of rings of Gorenstein (weak) global dimension zero and give two new characterizations of rings of finite Gorenstein (weak) global dimension. We also include the answer to a question of Y.~Xiang on Gorenstein weak global dimension of group rings.
