{"title":"动机谱的阿蒂亚对偶性","authors":"Toni Annala, Marc Hoyois, Ryomei Iwasa","doi":"arxiv-2403.01561","DOIUrl":null,"url":null,"abstract":"We prove that Atiyah duality holds in the $\\infty$-category of non-$\\mathbb\nA^1$-invariant motivic spectra over arbitrary derived schemes: every smooth\nprojective scheme is dualizable with dual given by the Thom spectrum of its\nnegative tangent bundle. The Gysin maps recently constructed by L. Tang are a\nkey ingredient in the proof. We then present several applications. First, we\nstudy $\\mathbb A^1$-colocalization, which transforms any module over the\n$\\mathbb A^1$-invariant sphere into an $\\mathbb A^1$-invariant motivic spectrum\nwithout changing its values on smooth projective schemes. This can be applied\nto all known $p$-adic cohomology theories and gives a new elementary approach\nto \"logarithmic\" or \"tame\" cohomology theories; it recovers for instance the\nlogarithmic crystalline cohomology of strict normal crossings compactifications\nover perfect fields and shows that the latter is independent of the choice of\ncompactification. Second, we prove a motivic Landweber exact functor theorem,\nassociating a motivic spectrum to any graded formal group law classified by a\nflat map to the moduli stack of formal groups. Using this theorem, we compute\nthe ring of $\\mathbb P^1$-stable cohomology operations on the algebraic\nK-theory of qcqs derived schemes, and we prove that rational motivic cohomology\nis an idempotent motivic spectrum.","PeriodicalId":501143,"journal":{"name":"arXiv - MATH - K-Theory and Homology","volume":"80 1","pages":""},"PeriodicalIF":0.0000,"publicationDate":"2024-03-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":"{\"title\":\"Atiyah duality for motivic spectra\",\"authors\":\"Toni Annala, Marc Hoyois, Ryomei Iwasa\",\"doi\":\"arxiv-2403.01561\",\"DOIUrl\":null,\"url\":null,\"abstract\":\"We prove that Atiyah duality holds in the $\\\\infty$-category of non-$\\\\mathbb\\nA^1$-invariant motivic spectra over arbitrary derived schemes: every smooth\\nprojective scheme is dualizable with dual given by the Thom spectrum of its\\nnegative tangent bundle. The Gysin maps recently constructed by L. Tang are a\\nkey ingredient in the proof. We then present several applications. First, we\\nstudy $\\\\mathbb A^1$-colocalization, which transforms any module over the\\n$\\\\mathbb A^1$-invariant sphere into an $\\\\mathbb A^1$-invariant motivic spectrum\\nwithout changing its values on smooth projective schemes. This can be applied\\nto all known $p$-adic cohomology theories and gives a new elementary approach\\nto \\\"logarithmic\\\" or \\\"tame\\\" cohomology theories; it recovers for instance the\\nlogarithmic crystalline cohomology of strict normal crossings compactifications\\nover perfect fields and shows that the latter is independent of the choice of\\ncompactification. Second, we prove a motivic Landweber exact functor theorem,\\nassociating a motivic spectrum to any graded formal group law classified by a\\nflat map to the moduli stack of formal groups. Using this theorem, we compute\\nthe ring of $\\\\mathbb P^1$-stable cohomology operations on the algebraic\\nK-theory of qcqs derived schemes, and we prove that rational motivic cohomology\\nis an idempotent motivic spectrum.\",\"PeriodicalId\":501143,\"journal\":{\"name\":\"arXiv - MATH - K-Theory and Homology\",\"volume\":\"80 1\",\"pages\":\"\"},\"PeriodicalIF\":0.0000,\"publicationDate\":\"2024-03-03\",\"publicationTypes\":\"Journal Article\",\"fieldsOfStudy\":null,\"isOpenAccess\":false,\"openAccessPdf\":\"\",\"citationCount\":\"0\",\"resultStr\":null,\"platform\":\"Semanticscholar\",\"paperid\":null,\"PeriodicalName\":\"arXiv - MATH - K-Theory and Homology\",\"FirstCategoryId\":\"1085\",\"ListUrlMain\":\"https://doi.org/arxiv-2403.01561\",\"RegionNum\":0,\"RegionCategory\":null,\"ArticlePicture\":[],\"TitleCN\":null,\"AbstractTextCN\":null,\"PMCID\":null,\"EPubDate\":\"\",\"PubModel\":\"\",\"JCR\":\"\",\"JCRName\":\"\",\"Score\":null,\"Total\":0}","platform":"Semanticscholar","paperid":null,"PeriodicalName":"arXiv - MATH - K-Theory and Homology","FirstCategoryId":"1085","ListUrlMain":"https://doi.org/arxiv-2403.01561","RegionNum":0,"RegionCategory":null,"ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"","JCRName":"","Score":null,"Total":0}
We prove that Atiyah duality holds in the $\infty$-category of non-$\mathbb
A^1$-invariant motivic spectra over arbitrary derived schemes: every smooth
projective scheme is dualizable with dual given by the Thom spectrum of its
negative tangent bundle. The Gysin maps recently constructed by L. Tang are a
key ingredient in the proof. We then present several applications. First, we
study $\mathbb A^1$-colocalization, which transforms any module over the
$\mathbb A^1$-invariant sphere into an $\mathbb A^1$-invariant motivic spectrum
without changing its values on smooth projective schemes. This can be applied
to all known $p$-adic cohomology theories and gives a new elementary approach
to "logarithmic" or "tame" cohomology theories; it recovers for instance the
logarithmic crystalline cohomology of strict normal crossings compactifications
over perfect fields and shows that the latter is independent of the choice of
compactification. Second, we prove a motivic Landweber exact functor theorem,
associating a motivic spectrum to any graded formal group law classified by a
flat map to the moduli stack of formal groups. Using this theorem, we compute
the ring of $\mathbb P^1$-stable cohomology operations on the algebraic
K-theory of qcqs derived schemes, and we prove that rational motivic cohomology
is an idempotent motivic spectrum.