{ "id": "2007.11552", "version": "v1", "published": "2020-07-22T17:15:44.000Z", "updated": "2020-07-22T17:15:44.000Z", "title": "On conjectures of Hovey--Strickland and Chai", "authors": [ "Tobias Barthel", "Drew Heard", "Niko Naumann" ], "comment": "23 pages. All comments welcome", "categories": [ "math.AT", "math.NT" ], "abstract": "We prove the height two case of a conjecture of Hovey and Strickland that provides a $K(n)$-local analogue of the Hopkins--Smith thick subcategory theorem. Our approach first reduces the general conjecture to a problem in arithmetic geometry posed by Chai. We then use the Gross--Hopkins period map to verify Chai's Hope at height two and all primes. Along the way, we show that the graded commutative ring of completed cooperations for Morava $E$-theory is coherent, and that every finitely generated Morava module can be realized by a $K(n)$-local spectrum as long as $2p-2>n^2+n$. Finally, we deduce consequences of our results for descent of Balmer spectra.", "revisions": [ { "version": "v1", "updated": "2020-07-22T17:15:44.000Z" } ], "analyses": { "keywords": [ "conjecture", "hovey-strickland", "hopkins-smith thick subcategory theorem", "approach first reduces", "gross-hopkins period map" ], "note": { "typesetting": "TeX", "pages": 23, "language": "en", "license": "arXiv", "status": "editable" } } }