粗糙栈曲线的 Brauer 群及其 $\mu_r$-gerbe
代数几何
2025-07-25 v2
摘要
我们将 -gerbe 上的 Brauer 群嵌入到一个精确序列中,并给出其何时为短精确序列以及何时分解的条件。我们也给出当基曲线光滑时,-gerbe Brauer 群的精确公式。
关键词
引用
@article{arxiv.2507.08780,
title = {Brauer groups of tame stacky curves and their $\mu_r$-gerbes},
author = {Martin Bishop},
journal= {arXiv preprint arXiv:2507.08780},
year = {2025}
}
备注
24 pages. Rewrote intro, reorganized background, removed extraneous result, mild improvements throughout