Gersten's acyclicity conjecture for regular local rings

Let X=SpecAX = \operatorname{Spec} A, where (A,mA,L)(A,\mathfrak{m}_A,L) is a regular local ring. For each n0n \geq 0, let Gn(X)\mathcal{G}_n(X) be the Gersten complex associated with the codimensional filtration, whose terms are built from the groups Knp(k(x))K_{n-p}(k(x)) at points of codimension pp. Gersten's Conjecture. The complex Gn(X)\mathcal{G}_n(X) resolves Kn(X)K_n(X), meaning

Hp(Gn(X))={Kn(X)p=00p>0.H^p(\mathcal{G}_n(X)) = \begin{cases} K_n(X) & p = 0 \\ 0 & p > 0. \end{cases}

This is the acyclicity conjecture for the Gersten complex of a regular local ring and is a central problem in algebraic KK-theory. The source does not specify a resolution status for the general statement.

Sources & referencesView supporting material

Primary source

C. Skalit, “Regular Morphisms and Gersten's Conjecture”, arXiv:1710.00303 (2017).

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