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Transactions of the American Mathematical Society

Published by the American Mathematical Society since 1900, Transactions of the American Mathematical Society is devoted to longer research articles in all areas of pure and applied mathematics.

ISSN 1088-6850 (online) ISSN 0002-9947 (print)

The 2020 MCQ for Transactions of the American Mathematical Society is 1.48.

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Distality in valued fields and related structures
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by Matthias Aschenbrenner, Artem Chernikov, Allen Gehret and Martin Ziegler PDF
Trans. Amer. Math. Soc. 375 (2022), 4641-4710 Request permission

Abstract:

We investigate distality and existence of distal expansions in valued fields and related structures. In particular, we characterize distality in a large class of ordered abelian groups, provide an Ax-Kochen-Eršov-style characterization for henselian valued fields, and demonstrate that certain expansions of fields, e.g., the differential field of logarithmic-exponential transseries, are distal. As a new tool for analyzing valued fields we employ a relative quantifier elimination for pure short exact sequences of abelian groups.
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Additional Information
  • Matthias Aschenbrenner
  • Affiliation: Department of Mathematics, University of California, Los Angeles, Los Angeles, California 90095
  • Address at time of publication: Kurt Gödel Research Center for Mathematical Logic, Universität Wien, 1090 Wien, Austria
  • MR Author ID: 659909
  • ORCID: 0000-0001-5895-5254
  • Email: matthias.aschenbrenner@univie.ac.at
  • Artem Chernikov
  • Affiliation: Department of Mathematics, University of California, Los Angeles, Los Angeles, California 90095
  • MR Author ID: 974787
  • ORCID: 0000-0002-9136-8737
  • Email: chernikov@math.ucla.edu
  • Allen Gehret
  • Affiliation: Department of Mathematics, University of California, Los Angeles, Los Angeles, California 90095
  • Address at time of publication: Kurt Gödel Research Center for Mathematical Logic, Universität Wien, 1090 Wien, Austria
  • MR Author ID: 1184147
  • ORCID: 0000-0001-9627-6519
  • Email: allen.gehret@univie.ac.at
  • Martin Ziegler
  • Affiliation: Albert-Ludwigs-Universität Freiburg, Mathematisches Institut, Abteilung für Mathematische Logik, 79104 Freiburg, Germany
  • MR Author ID: 210569
  • Email: ziegler@uni-freiburg.de
  • Received by editor(s): September 3, 2020
  • Received by editor(s) in revised form: September 30, 2021
  • Published electronically: May 4, 2022
  • Additional Notes: The first author was partially supported by NSF Research Grant DMS-1700439. The second author was partially supported by NSF Research Grant DMS-1600796, by NSF CAREER Grant DMS-1651321, an Alfred P. Sloan Fellowship, and a Simons Fellowship. The third author was partially supported by NSF Award No. 1703709.
  • © Copyright 2022 American Mathematical Society
  • Journal: Trans. Amer. Math. Soc. 375 (2022), 4641-4710
  • MSC (2020): Primary 03C45, 03C60; Secondary 12L12, 12J25
  • DOI: https://doi.org/10.1090/tran/8661
  • MathSciNet review: 4439488