Two coniveau filtrations
نویسندگان
چکیده
A cohomology class of a smooth complex variety dimension $n$ has coniveau $\geq c$ if it vanishes in the complement closed subvariety codimension c$, and strong comes by proper pushforward from $\leq n-c$. We show that these two notions differ general, both for integral classes on projective varieties rational open varieties.
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ژورنال
عنوان ژورنال: Duke Mathematical Journal
سال: 2021
ISSN: ['1547-7398', '0012-7094']
DOI: https://doi.org/10.1215/00127094-2021-0055