The ll-part of the Tamagawa number conjecture

Let UU be the open arithmetic base over which the smooth ll-adic sheaf VliV_l^i is defined, let TliVliT_l^i\subseteq V_l^i be a Galois-stable Zl\mathbb Z_l-lattice, and let ϑli\vartheta_l^i and ϑi\vartheta_\infty^i be the comparison isomorphisms arising from the preceding conjectures. The ll-part of the Tamagawa number conjecture. There is an identity of free rank-one Zl\mathbb Z_l-submodules of detQlRΓc(Uet,Vli)\operatorname{det}_{\mathbb Q_l}R\Gamma_c(U_{\operatorname{et}},V_l^i):

Zlϑliϑi(L(hi(X),0)1)=detZlRΓc(Uet,Tli)\mathbb Z_l\cdot\vartheta_l^i\circ\vartheta_\infty^i(L^*(h^i(X),0)^{-1})=\operatorname{det}_{\mathbb Z_l}R\Gamma_c(U_{\operatorname{et}},T_l^i)

for any Galois-stable Zl\mathbb Z_l-lattice TliVliT_l^i\subseteq V_l^i. This is the integral ll-adic formulation of the Tamagawa number conjecture and is independent of the chosen lattice, according to the source.

Sources & referencesView supporting material

Primary source

Matthias Flach and Baptiste Morin, “On the Weil-étale topos of regular arithmetic schemes”, arXiv:1010.3833 (2010).

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