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The telescope conjecture at height 2 and the tmf resolution
Journal of Topology ( IF 0.8 ) Pub Date : 2021-10-27 , DOI: 10.1112/topo.12208
Agnès Beaudry 1 , Mark Behrens 2 , Prasit Bhattacharya 2 , Dominic Culver 3 , Zhouli Xu 4
Affiliation  

Mahowald proved the height 1 telescope conjecture at the prime 2 as an application of his seminal work on bo-resolutions. In this paper, we study the height 2 telescope conjecture at the prime 2 through the lens of tmf-resolutions. To this end, we compute the structure of the tmf-resolution for a specific type 2 complex Z. We find that, analogous to the height 1 case, the E 1 -page of the tmf-resolution possesses a decomposition into a v 2 -periodic summand, and an Eilenberg–MacLane summand which consists of bounded v 2 -torsion. However, unlike the height 1 case, the E 2 -page of the tmf-resolution exhibits unbounded v 2 -torsion. We compare this to the work of Mahowald–Ravenel–Shick, and discuss how the validity of the telescope conjecture is connected to the fate of this unbounded v 2 -torsion: either the unbounded v 2 -torsion kills itself off in the spectral sequence, and the telescope conjecture is true, or it persists to form v 2 -parabolas and the telescope conjecture is false. We also study how to use the tmf-resolution to effectively give low-dimensional computations of the homotopy groups of Z. These computations allow us to prove a conjecture of the second author and Egger: the E ( 2 ) -local Adams–Novikov spectral sequence for Z collapses.

中文翻译:

2高处的望远镜猜想和tmf分辨率

Mahowald 在素数 2 证明了高度 1 望远镜猜想,作为他对 bo 分辨率的开创性工作的应用。在本文中,我们通过透镜研究了素数 2 处的高 2 望远镜猜想 肌动蛋白-决议。为此,我们计算结构 肌动蛋白- 特定类型 2 复合体的分辨率 Z. 我们发现,类似于高度 1 的情况, 1 - 页面 肌动蛋白-分辨率具有分解为 v 2 -periodic summand 和 Eilenberg–MacLane summand,它由有界 v 2 -扭转。然而,与高度 1 的情况不同, 2 - 页面 肌动蛋白-分辨率展品无界 v 2 -扭转。我们将其与 Mahowald-Ravenel-Shick 的工作进行比较,并讨论望远镜猜想的有效性如何与这个无界的命运联系起来 v 2 -torsion:无界 v 2 -torsion 在光谱序列中自行消失,望远镜猜想是正确的,或者它持续形成 v 2 -抛物线和望远镜猜想是错误的。我们还研究如何使用 肌动蛋白-分辨率有效地给出同伦群的低维计算 Z. 这些计算使我们能够证明第二作者和 Egger 的一个猜想: ( 2 ) -local Adams–Novikov 谱序列 Z 崩溃。
更新日期:2021-10-27
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