Explicit reciprocity conjecture for Rubin–Stark elements

Let S:=S(k)Sp(k)Sram(L/k)S:=S_\infty(k)\cup S_p(k)\cup S_{\rm ram}(L/k), assume the Rubin–Stark conjecture for all finite subextensions of Lk(p)/kLk(p^\infty)/k, and suppose that pp splits completely in kk. Let T\mathbb T_\infty be the corresponding Iwasawa representation, let locΣ{\rm loc}_\Sigma be localization at the places in Σ\Sigma, and let Colv{\rm Col}_v be the Coleman maps. Explicit reciprocity conjecture.

vΣColv(locΣ(ϵL(p)/k,SS(k),χ))=Lp,Σχ,ι.\bigwedge_{v\in\Sigma}{\rm Col}_v\bigl({\rm loc}_\Sigma(\epsilon^{S_\infty(k),\chi}_{L(p^\infty)/k,S})\bigr)=L_{p,\Sigma}^{\chi,\iota}.

This conjecture identifies the Coleman-map image of the Iwasawa-theoretic Rubin–Stark element with Katz's pp-adic LL-function. The supplied context does not establish its resolution.

Sources & referencesView supporting material

Primary source

Kazim Buyukboduk and Ryotaro Sakamoto, “On the non-critical exceptional zeros of Katz p-adic L-functions for CM fields”, arXiv:1904.01644 (2022).

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