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Published November 2021 | Published
Journal Article Open

Rubin's conjecture on local units in the anticyclotomic tower at inert primes


We prove a fundamental conjecture of Rubin on the structure of local units in the anticyclotomic ℤ_p-extension of the unramified quadratic extension of ℚ_p for p ≥ 5 a prime.

Additional Information

© 2021 Department of Mathematics, Princeton University. (Received: April 1, 2021) (Revised: July 6, 2021) This work was partially supported by the NSF grant DMS2001409, and the JSPS KAKENHI grants JP16K13742, JP17H02836, JP17K14173 and JP18J01237. The authors thank Adebisi Agboola, Ye Tian, Chris Skinner and Wei Zhang for instructive comments. They also thank Naomi Jochnowitz and Jeremy Rouse for helpful exchanges. They are grateful to the referee for valuable suggestions. The authors would like to express their sincere gratitude to Karl Rubin for his inspiring oeuvre, the influence of which is transparent.

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August 22, 2023
October 23, 2023