Kato's weak Tamagawa number conjecture for constructible K-theory elements

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Let HMH_{{\cal M}} be the relevant Adams eigenspace of Quillen K-theory, and let HMconstr⁡⊂HMH^{\operatorname{constr}}_{{\cal M}}\subset H_{{\cal M}} be the subspace of constructible elements. Retain the notation rDr_{{\cal D}}, rpr_p, Hp2H^2_p, LS(Vp∗(1),s)L_S(V_p^*(1),s), Hh,ZH_{h,\mathbb{Z}}, ee, and the determinant lattices from Kato's Tamagawa number conjecture.

Kato's weak Tamagawa number conjecture. There is a subspace HMconstr⁡H^{\operatorname{constr}}_{{\cal M}} such that rDr_{{\cal D}} and rpr_p restricted to it are isomorphisms and Hp2H^2_p is finite; the dimension assertion is the same as part (b) of the full conjecture; there is an element ξ∈det⁡Q(HMconstr⁡)\xi\in\det_{\mathbb{Q}}(H^{\operatorname{constr}}_{{\cal M}}) with

rD(ξ)=(lim⁡s→0s−eLS(Vp∗(1),s))η;r_{{\cal D}}(\xi)=\left(\lim_{s\to0}s^{-e}L_S(V_p^*(1),s)\right)\eta;

and rp(ξ)r_p(\xi) is a basis of

det⁡Zp(RΓ(OS,Tp))−1⊂det⁡Qp(RΓ(OS,Vp)[−1])≅det⁡Qp(Hp1⊗ZpQp).\det_{\mathbb{Z}_p}(R\Gamma(\mathcal{O}_S,T_p))^{-1}\subset\det_{\mathbb{Q}_p}(R\Gamma(\mathcal{O}_S,V_p)[-1])\cong\det_{\mathbb{Q}_p}(H^1_p\otimes_{\mathbb{Z}_p}\mathbb{Q}_p).

The weak form replaces the full motivic K-theory space by constructible elements, while retaining the regulator, special-value, and determinant-lattice predictions.

References

Primary source

Guido Kings, “The Tamagawa number conjecture for CM elliptic curves”, arXiv:math/0003113 (2000).

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