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arXiv 2104.12604math.ATmath.AG
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Goodwillie演算和几何堆栈

Goodwillie Calculus and Geometric Stacks

Renaud Gauthier

摘要:

我们显示Goodwillie的演算函子和$n$ -几何$D^{-}$ -堆栈共享类似的功能,开始专注于泰勒塔同伦函子的收敛性和$\mathbb{R} F(A) \cong \text{holim} \mathbb{R} F(A_{\leq n})$几何堆栈的事实,其中$\{ A_{\leq n} \}$提供了一个Postnikov塔的一些给定的$A \in s \text{k-Alg}$。从那里,我们展示了平行的结果,如相似的同伦纤维的连接映射塔,以及多项式逼近,逐点逼近和重建定理塔。

英文摘要:

We show Goodwillie's calculus of functors and $n$-geometric $D^{-}$-stacks share similar features by starting to focus on the convergence of Taylor towers for homotopy functors and the fact that $\mathbb{R} F(A) \cong \text{holim} \mathbb{R} F(A_{\leq n})$ for geometric stacks, where $\{ A_{\leq n} \}$ provides a Postnikov tower of some given $A \in s \text{k-Alg}$. From there we show parallel results, such as similar homotopy fibers of connecting maps in towers, as well as polynomial approximations, pointwise approximations and reconstruction theorems for towers.

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