论文标题
关于不可定向表面的角色堆栈的共同体学
On the cohomology of character stacks for non-orientable surfaces
论文作者
论文摘要
我们对Letellier和Rodriguez-Villegas(Arxiv:2008.13435)的作品提出的公式进行了反例,用于不可定向表面的一系列庞加莱台阶。反例是通过对(真)椭圆曲线的这些字符堆栈的明确描述获得的。
We give a counterexample to a formula suggested by the work of Letellier and Rodriguez-Villegas (arXiv:2008.13435) for the mixed Poincaré series of character stacks for non-orientable surfaces. The counterexample is obtained by an explicit description of these character stacks for (real) elliptic curves.