论文标题

从细胞的角度来看,经典同源稳定性

Classical homological stability from the point of view of cells

论文作者

Randal-Williams, Oscar

论文摘要

我们解释了如何解释“古典”同源稳定性论证中产生的复合物(例如,在Randal-Williams-Wahl的框架中),以较高的代数为角度,这在这种情况下导致了同源稳定性的新证明。关键成分是Damiolini的定理,该定理对某些弧形复合物的合同。我们还解释了如何将这些复合物的连接性与Galatius-bupers-and-williams的“分裂复合物”的连接性进行比较。

We explain how to interpret the complexes arising in the "classical" homology stability argument (e.g. in the framework of Randal-Williams--Wahl) in terms of higher algebra, which leads to a new proof of homological stability in this setting. The key ingredient is a theorem of Damiolini on the contractibility of certain arc complexes. We also explain how to directly compare the connectivities of these complexes with that of the "splitting complexes" of Galatius--Kupers--Randal-Williams.

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