On the nearly smooth complex spaces

Daniel Barlet; Jón Magnússon

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arXiv · 1710.08105

On the nearly smooth complex spaces

Daniel Barlet·Jón Magnússon

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Abstract

We introduce a class of normal complex spaces having only mild sin-gularities (close to quotient singularities) for which we generalize the notion of a (analytic) fundamental class for an analytic cycle and also the notion of a relative fundamental class for an analytic family of cycles. We also generalize to these spaces the geometric intersection theory for analytic cycles with rational positive coefficients and show that it behaves well with respect to analytic families of cycles. We prove that this intersection theory has most of the usual properties of the standard geometric intersection theory on complex manifolds, but with the exception that the intersection cycle of two cycles with positive integral coefficients that intersect properly may have rational coefficients. AMS classification. 32 C 20-32 C 25-32 C 36.

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Daniel Barlet, Jón Magnússon. 2017-10-23. On the nearly smooth complex spaces. https://arxiv.org/abs/1710.08105

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