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arXiv 2407.04895math.AT
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回缩空间与 Bousfield–Kank 完备化

Retractive spaces and Bousfield-Kan completions

Zeshen Gu, John E. Harper

AI总结:

本文将 operadic 谱代数中 Bousfield–Kan 完备化与 Goodwillie Taylor 塔收敛比较技术推广到回缩空间,给出 Arone–Kankaanrinta 结果的新证明与推广。

摘要:

在这篇短文中,我们将 Schonsheck 以及随后 Carr–Harper 在谱中的 operadic 代数语境下发展的一些新技术——关于 Bousfield–Kan 完备化的收敛性,以及与 Goodwillie 函子演算中恒等函子的 Taylor 塔收敛性的比较——应用于回缩空间的情形:这产生于研究以远离一点空间的空间为中心的空间时。有趣的是,在回缩空间语境中,就解析函子的函子演算“(强)收敛半径”概念之外的收敛性而言,比较结果更强。特别地,我们给出了 Arone–Kankaanrinta 关于恒等函子 Taylor 塔向各种 Bousfield–Kan 完备化收敛的结果的一个新证明(并推广到回缩空间);值得注意的是,我们没有使用 Snaith 分裂——相反,我们大量使用了 Dundas 以及 Dundas–Goodwillie–McCarthy 早期工作中出现的那类同伦估计。

英文摘要:

In this short paper we apply some recent techniques developed by Schonsheck, and subsequently Carr-Harper, in the context of operadic algebras in spectra -- on convergence of Bousfield-Kan completions and comparisons with convergence of the Taylor tower of the identity functor in Goodwillie's functor calculus -- to the setting of retractive spaces: this arises when working with spaces centered away from the one-point space. Interestingly, in the retractive spaces context, the comparison results are stronger in terms of convergence outside of functor calculus' notion of "radius of (strong) convergence" for analytic functors. In particular, we give a new proof (and generalization to retractive spaces) of the Arone-Kankaanrinta result for convergence of the Taylor tower of the identity functor to various Bousfield-Kan completions; it's notable that no use is made of Snaith splittings -- rather, we make extensive use of the kinds of homotopical estimates that appear in earlier work of Dundas and Dundas-Goodwillie-McCarthy.

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。

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