English

Intersections via resolutions

Algebraic Geometry 2014-04-09 v1

Abstract

We investigate the viability of defining an intersection product on algebraic cycles on a singular algebraic variety by pushing forward intersection products formed on a resolution of singularities. For varieties with resolutions having a certain structure (including all varieties over a field of characteristic zero), we obtain a stratification which reflects the geometry of the centers and the exceptional divisors. This stratification is sufficiently fine that divisors can be intersected with rr-cycles (for r1r \geq 1), and 2-cycles can be intersected on a fourfold, provided their incidences with the strata are controlled. Similar pairings are defined on a variety with one-dimensional singular locus.

Keywords

Cite

@article{arxiv.1404.2001,
  title  = {Intersections via resolutions},
  author = {Joseph Ross},
  journal= {arXiv preprint arXiv:1404.2001},
  year   = {2014}
}

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R2 v1 2026-06-22T03:45:23.874Z