共混物和合金
Blends and Alloys
摘要：
给定两个代数A和B，有时假定它们是C* 代数，考虑在张量积A \otimes B上放置代数或C* 代数结构的问题.在C*-情形下，假设B是二维的，我们用循环群Z_2的作用刻画了所有可能的C* 代数结构.还讨论了一个与通勤广场有关的例子。
英文摘要：
Given two algebras A and B, sometimes assumed to be C*-algebras, we consider the question of putting algebra or C*-algebra structures on the tensor product A\otimes B. In the C*-case, assuming B to be two-dimensonal, we characterize all possible such C*-algebra structures in terms of an action of the cyclic group Z_2. An example related to commuting squares is also discussed.
机构、总结、中文摘要均由AI分析而来，可能存在错误，请以论文正文为准。
