The proposed growth-control conjecture for motivic cohomology of fields

The paper considers motivic cohomology groups HMn,i(K)\operatorname H_{\mathrm M}^{n,i}(K) of a field KK, with δ(K)\delta(K) denoting its Kronecker dimension. Growth-control conjecture. For every field KK finitely generated over its prime field FF, one has

HMn,i(K)=0\operatorname H_{\mathrm M}^{n,i}(K)=0

unless (n,i)=(0,0)(n,i)=(0,0) or n[1,δ(K)]n\in[1,\delta(K)]. This conjecture proposes a precise vanishing range complementing the Beilinson–Soulé conjecture, in a setting where motivic cohomology can otherwise have infinite rank.

Sources & referencesView supporting material

Primary source

F. Déglise, “Generic motives and motivic cohomology of fields”, arXiv:2408.06233 (2025).

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