Weight-two injectivity conjecture for links of complex analytic spaces

About 12 years old · traced to

Let XX be a complex analytic space that is S2S_2 and has pure dimension ≥3\geq 3, let x∈Xx\in X be a point, and let π:Xˉ→X\pi:\bar X\to X be the normalization with corresponding point xˉ\bar x. Weight-two injectivity conjecture. The pull-back map

π∗:H2(link⁡(x,X),C)→H2(link⁡(xˉ,Xˉ),C)\pi^*:H^2\bigl(\operatorname{link}(x,X),\mathbb C\bigr)\to H^2\bigl(\operatorname{link}(\bar x,\bar X),\mathbb C\bigr)

is injective on the weight-22 graded piece of the mixed Hodge structure. Such injectivity would imply most of the normalization conjecture for analytic spaces; the source does not state that it has been proved.

References

Primary source

János Kollár, “Maps between local Picard groups”, arXiv:1407.5108 (2014).

Progress summary

Never refreshed

Nothing recorded yet. Refresh searches the literature and the public web for attempts on this problem, and writes the first summary here.

Solutions 0

No solutions have been posted yet.