Abstract
In this paper we prove that the motivic Eisenstein classes associated to polylogarithms of commutative group schemes can be p-adically interpolated in étale cohomology. This connects them to Iwasawa theory and generalizes and strengthens the results for elliptic curves obtained in our former work. In particular, degeneration questions can be treated easily.
To John Coates, on the occasion of his 70th birthday
This research was supported by the DFG grant: SFB 1085 “Higher invariants”.
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Acknowledgements
This paper is a sequel to [12], which was written as a response to John Coates’ wish to have an exposition of the results in [6] at a conference in Pune, India. This triggered a renewed interest of mine in the p-adic interpolation of motivic Eisenstein classes which goes back to [11]. In this sense the paper would not exist without the persistence of John Coates. The paper [7] with Annette Huber created the right framework to treat these questions. It is a pleasure to thank them both and to dedicate this paper to John Coates on the occasion of his seventieth birthday.
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Kings, G. (2016). On p-adic Interpolation of Motivic Eisenstein Classes. In: Loeffler, D., Zerbes, S. (eds) Elliptic Curves, Modular Forms and Iwasawa Theory. JHC70 2015. Springer Proceedings in Mathematics & Statistics, vol 188. Springer, Cham. https://doi.org/10.1007/978-3-319-45032-2_10
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