ON THE BEILINSON FIBER SQUARE

Benjamin Antieau, Akhil Mathew, Matthew Morrow, Thomas Nikolaus

Research output: Contribution to journalArticlepeer-review

10 Scopus citations

Abstract

Using topological cyclic homology, we give a refinement of Beilinson’s p-adic Goodwillie isomorphism between relative continuous K-theory and cyclic homology. As a result, we generalize results of Bloch–Esnault–Kerz and Beilinson on the p-adic deformations of K-theory classes. Furthermore, we prove structural results for the Bhatt–Morrow–Scholze filtration on TC and identify the graded pieces with the syntomic cohomology of Fontaine–Messing.

Original languageEnglish (US)
Pages (from-to)3707-3806
Number of pages100
JournalDuke Mathematical Journal
Volume171
Issue number18
DOIs
StatePublished - Dec 1 2022

Funding

The first two authors would like to thank the University of Bonn and the University of Münster for their hospitality. This material is based upon work supported by National Science Foundation (NSF) grant DMS-1440140 while the first three authors were in residence at the Mathematical Sciences Research Institute in Berkeley, California, during the spring 2019 semester. The first author was supported by NSF grant DMS-1552766. This work was done while the second author was a Clay Research Fellow. The fourth author was funded by the Deutsche Forschungsgemein-schaft under Germany’s Excellence Strategy EXC 2044-390685587, Mathematics Münster: Dynamics–Geometry–Structure. We are very grateful to Peter Scholze for suggesting this question to us and for sharing many insights. We would also like to thank Johannes Anschütz, Alexander Beilinson, Bhargav Bhatt, Hélène Esnault, Lars Hesselholt, Luc Illusie, Moritz Kerz, Arthur-César Le Bras, Wiesława Nizioł, and Sam Raskin for helpful conversations. The third author would like to thank Uwe Jannsen, Moritz Kerz, and Guido Kings for organizing and inviting him to the 2014 Kleinwalsertal workshop on Beilinson’s paper [8]. Two referees provided detailed, invaluable comments on the paper which has been improved as a result. The first two authors would like to thank the University of Bonn and the University of Münster for their hospitality. This material is based upon work supported by National Science Foundation (NSF) grant DMS-1440140 while the first three authors were in residence at the Mathematical Sciences Research Institute in Berkeley, California, during the spring 2019 semester. The first author was supported by NSF grant DMS-1552766. This work was done while the second author was a Clay Research Fellow. The fourth author was funded by the Deutsche Forschungsgemeinschaft under Germany’s Excellence Strategy EXC 2044-390685587, Mathematics Münster: Dynamics–Geometry–Structure.

ASJC Scopus subject areas

  • General Mathematics

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