Higher-rank non-commutative main conjecture for \mathbb{G}_m

Let K/K\mathcal{K}_\infty/K and SS be as in the source, put Σ=ΣS(K)\Sigma=\Sigma_S(\mathcal{K}_\infty) and r=Σr=|\Sigma|, and let Λ(G)\Lambda(\mathcal{G}_\infty) be the relevant Iwasawa algebra with total quotient ring Q(G)Q(\mathcal{G}_\infty). Let CK,S,TC_{\mathcal{K}_\infty,S,T} be the inverse-limit cohomological complex, εK,S,TRS\varepsilon^{\rm RS}_{\mathcal{K}_\infty,S,T} the inverse-limit Rubin–Stark element, and ΘK,S,TΣ\Theta^\Sigma_{\mathcal{K}_\infty,S,T} the canonical homomorphism to the rank-rr bidual module. Higher-rank non-commutative main conjecture for Gm\mathbb{G}_m. One has

NrdQ(G)(K1(Λ(G)))εK,S,TRS=ΘK,S,TΣ(dΛ(G)(CK,S,T)pb){\rm Nrd}_{Q(\mathcal{G}_\infty)}(K_1(\Lambda(\mathcal{G}_\infty)))\cdot\varepsilon^{\rm RS}_{\mathcal{K}_\infty,S,T}=\Theta^\Sigma_{\mathcal{K}_\infty,S,T}({\rm d}_{\Lambda(\mathcal{G}_\infty)}(C_{\mathcal{K}_\infty,S,T})^{\rm pb})

in Λ(G)rOK,S,T×{\bigcap}_{\Lambda(\mathcal{G}_\infty)}^r\mathcal{O}_{\mathcal{K}_\infty,S,T}^\times. This is an explicit higher-rank main conjecture in non-commutative pp-adic Iwasawa theory for Gm\mathbb{G}_m; the supplied text gives no resolution status.

Sources & referencesView supporting material

Primary source

David Burns and Takamichi Sano, “On non-commutative Iwasawa theory and derivatives of Euler systems”, arXiv:2211.00276 (2025).

Additional references

3 papers in this index state this conjecture (2002–2022). The statement above is taken from the most recent of them; the others are arXiv:math/0511278, arXiv:math/0208206.

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