中文

∞-拓扑的左正合局部化 I:高阶层

范畴论 2022-03-02 v4 代数拓扑

摘要

我们正在开发用于处理 ∞-拓扑的任意左正合局部化的工具。我们针对 ∞-拓扑 E\mathscr{E} 中任意一组映射 Σ\Sigma 引入了高阶层(higher sheaf)的概念。我们证明高阶层全子范畴 Sh(E,Σ)\mathrm{Sh}(\mathscr{E},\Sigma) 是一个 ∞-拓扑,且层反射 ESh(E,Σ)\mathscr{E}\to \mathrm{Sh}(\mathscr{E},\Sigma) 是由 Σ\Sigma 生成的左正合局部化。该证明依赖于同余(congruence)的概念,它是 1-拓扑理论中 Grothendieck 拓扑概念的替代。

关键词

引用

@article{arxiv.2101.02791,
  title  = {Left-exact Localizations of $\infty$-Topoi I: Higher Sheaves},
  author = {Mathieu Anel and Georg Biedermann and Eric Finster and André Joyal},
  journal= {arXiv preprint arXiv:2101.02791},
  year   = {2022}
}

备注

v2: 47 pages, paper substantially rewritten, proofs of main theorems shortened, examples added. v3: changed title, corrected a few typos, added Remark 3.3.10, split old Prop. 4.3.6 into new Prop. 4.3.6 and 4.3.7 for reference purposes. v4: published version, corrected typos and bibliography