## Abstract

We provide a topological duality resolution for the spectrum E_{2} ^{hs1/2}, which itself can be used to build the K(2)-local sphere. The resolution is built from spectra of the form E_{2} ^{hF} where E_{2} is the Morava spectrum for the formal group of a supersingular curve at the prime 2 and F is a finite subgroup of the automorphisms of that formal group. The results are in complete analogy with the resolutions of Goerss, Henn, Mahowald and Rezk (Ann. of Math. (2) 162 (2005) 777–822) at the prime 3, but the methods are of necessity very different. As in the prime 3 case, the main difficulty is in identifying the top fiber; to do this, we make calculations using Henn's centralizer resolution.

Original language | English (US) |
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Pages (from-to) | 917-956 |

Number of pages | 40 |

Journal | Journal of Topology |

Volume | 11 |

Issue number | 4 |

DOIs | |

State | Published - Dec 2018 |

## Keywords

- 55P42
- 55Q10
- 55Q40
- 55Q45 (primary)

## ASJC Scopus subject areas

- Geometry and Topology