The equivariant Tamagawa number conjecture for (h0(Spec(L)),Z[G])(h^0(\operatorname{Spec}(L)),\mathbb{Z}[G])

Let L/KL/K be a finite Galois extension of number fields with Galois group GG, and let SS be a finite set of places of KK containing all archimedean places and all places ramified in LL. Let TΩ(L/K,0)T\Omega(L/K,0) be Burns's canonical element in the relative algebraic KK-group K0(Z[G],R)K_0(\mathbb{Z}[G],\mathbb{R}), defined using the refined Euler characteristic and the leading term of the equivariant SS-truncated LL-series at s=0s=0. Equivariant Tamagawa number conjecture. The element TΩ(L/K,0)T\Omega(L/K,0) vanishes:

TΩ(L/K,0)=0in K0(Z[G],R).T\Omega(L/K,0)=0\quad\text{in }K_0(\mathbb{Z}[G],\mathbb{R}).

This is the ETNC for the stated pair, and the source uses it as the conjectural statement underlying its results on the minus pp-part under additional ramification hypotheses.

Sources & referencesView supporting material

Primary source

Andreas Nickel, “The strong Stark conjecture for totally odd characters”, arXiv:2106.05619 (2021).

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