从规范异常到gerbes和gerbal行为
From gauge anomalies to gerbes and gerbal actions
摘要：
这一贡献的目的是指出最近的想法gerbes和gerbal行动（作为更高的范畴扩展的表示论）和旧的讨论在量子场论交换子异常，规范群的扩展，和3-上循环之间的联系。统一的概念是经典的障碍理论群扩展中解释的参考[ML]。
英文摘要：
The purpose of this contribution is to point out connections between recent ideas about gerbes and gerbal actions (as higher categorical extension of representation theory) and old discussion in quantum field theory on commutator anomalies, gauge group extensions, and 3-cocycles. The unifying concept is the classical obstruction theory for group extensions as explained in the reference [ML].
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。
