码下降理论II：相干近似
Codescent theory II: Cofibrant approximations
摘要：
本文建立了一种在$S$值$C$ -指标图的模型范畴$U_S(C,D)$中产生具有$D$ -弱等价和$D$ -纤维化的协调逼近的一般方法。我们还提出了明确的例子，这样的近似。在这里，$S$是任意共纤生成的单纯模型范畴，而$D\subset C$是小范畴。同伦余限的概念的应用。
英文摘要：
We establish a general method to produce cofibrant approximations in the model category $U_S(C,D)$ of $S$-valued $C$-indexed diagrams with $D$-weak equivalences and $D$-fibrations. We also present explicit examples of such approximations. Here, $S$ is an arbitrary cofibrantly generated simplicial model category and $D\subset C$ are small categories. An application to the notion of homotopy colimit is presented.
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。
