English

Wonderful compactification of an arrangement of subvarieties

Algebraic Geometry 2019-11-01 v2

Abstract

We define the wonderful compactification of an arrangement of subvarieties. Given a complex nonsingular algebraic variety YY and certain collection G\mathcal{G} of subvarieties of YY, the wonderful compactification YGY_\mathcal{G} can be constructed by a sequence of blow-ups of YY along the subvarieties of the arrangement. This generalizes the Fulton-MacPherson configuration spaces and the wonderful models given by De Concini and Procesi. We give a condition on the order of blow-ups in the construction of YGY_\mathcal{G} such that each blow-up is along a nonsingular center.

Keywords

Cite

@article{arxiv.math/0611412,
  title  = {Wonderful compactification of an arrangement of subvarieties},
  author = {Li Li},
  journal= {arXiv preprint arXiv:math/0611412},
  year   = {2019}
}

Comments

30 pages, presentation is improved, to appear in the Michigan Mathematical Journal