{ "id": "2210.15994", "version": "v1", "published": "2022-10-28T08:54:26.000Z", "updated": "2022-10-28T08:54:26.000Z", "title": "Cohomology of the Morava stabilizer group through the duality resolution at $n=p=2$", "authors": [ "Agnes Beaudry", "Irina Bobkova", "Paul G. Goerss", "Hans-Werner Henn", "Viet-Cuong Pham", "Vesna Stojanoska" ], "categories": [ "math.AT" ], "abstract": "We compute the continuous cohomology of the Morava stabilizer group with coefficients in Morava $E$-theory, $H^*(\\mathbb{G}_2, E_t)$, at $p=2$, for $0\\leq t < 12$, using the Algebraic Duality Spectral Sequence. Furthermore, in that same range, we compute the $d_3$-differentials in the homotopy fixed point spectral sequence for the $K(2)$-local sphere spectrum. These cohomology groups and differentials play a central role in $K(2)$-local stable homotopy theory, in particular for the analysis of the $K(2)$-local Picard group.", "revisions": [ { "version": "v1", "updated": "2022-10-28T08:54:26.000Z" } ], "analyses": { "keywords": [ "morava stabilizer group", "duality resolution", "cohomology", "algebraic duality spectral sequence", "homotopy fixed point spectral sequence" ], "note": { "typesetting": "TeX", "pages": 0, "language": "en", "license": "arXiv", "status": "editable" } } }