Abstract
Over a global field any finite number of central simple algebras of exponent dividing m is split by a common cyclic field extension of degree m. We show that the same property holds for function fields of 2-dimensional excellent schemes over a henselian local domain of dimension one or two with algebraically closed residue field.
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Acknowledgements
The authors express their gratitude to Jean-Louis Colliot-Thélène, Arno Fehm, David Grimm, Gonzalo Manzano Flores, R. Parimala, Suresh Venapally and Jan Van Geel for various answers, discussions, suggestions, simplifications and other valuable input related to this article. They further gratefully acknowledge the referee’s comments and suggestions, which helped to streamline the presentation.
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This work was supported by the Fonds Wetenschappelijk Onderzoek – Vlaanderen in the FWO Odysseus Programme (project Explicit Methods in Quadratic Form Theory) and by the Bijzonder Onderzoeksfonds, University of Antwerp (project BOF-DOCPRO-4, 2865)
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Becher, K.J., Gupta, P. Strong linkage for function fields of surfaces. manuscripta math. 168, 181–201 (2022). https://doi.org/10.1007/s00229-021-01301-x
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DOI: https://doi.org/10.1007/s00229-021-01301-x