Geisser's finite generation conjecture for motivic, Weil–étale and Kato cohomology

Let XX be a scheme over a finite field, and let Hic(X,Z(n))H_i^c(X,\mathbb Z(n)), HiF(X,Z(n))H_i^F(X,\mathbb Z(n)), and HiK(X,Z(n))H_i^K(X,\mathbb Z(n)) denote the cycle, Weil–étale, and Kato homology groups introduced in the paper. Geisser's finite generation conjecture. The groups

Hic(X,Z(n)),HiF(X,Z(n)),HiK(X,Z(n))H_i^c(X,\mathbb Z(n)),\qquad H_i^F(X,\mathbb Z(n)),\qquad H_i^K(X,\mathbb Z(n))

are finitely generated for every ii, nn, and XX. This is the paper's main integral finite-generation conjecture; the finite-coefficient analogue is weaker, and the conjecture is related to finite generation questions for motivic and Weil–étale cohomology.

Sources & referencesView supporting material

Primary source

Thomas H Geisser, “Finite generation conjectures for cohomology over finite fields”, arXiv:1103.5544 (2011).

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