Universal Koszulity conjecture for Galois cohomology

Let pp be prime, let FF be a field containing a primitive ppth root of unity, and assume that GF(p)G_F(p) is finitely generated. Write H(GF(p),Fp)H^\bullet(G_F(p),\mathbb{F}_p) for the continuous cohomology algebra. An algebra is universally Koszul when every ideal generated by degree-11 elements, equivalently every cyclic module of the relevant form, has a linear resolution. Universal Koszulity conjecture. The algebra

H(GF(p),Fp)H^\bullet(G_F(p),\mathbb{F}_p)

is universally Koszul. The paper presents this as a strengthening of the quadraticity supplied by Bloch–Kato; it is proved conditionally under the Elementary Type Conjecture, while the unconditional general case remains open.

Sources & referencesView supporting material

Primary source

Jan Minac, Marina Palaisti, Federico W. Pasini and Nguyen Duy Tan, “Enhanced Koszul properties in Galois cohomology”, arXiv:1811.09272 (2020).

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