English

On the Chern numbers of the generalised Kummer varieties

Algebraic Geometry 2007-05-23 v2

Abstract

Let A[[n]]A^{[[n]]} denote the 2(n1)2(n - 1)-dimensional generalised Kummer variety constructed from the abelian surface AA. Further, let XX be an arbitrary smooth projective surface with Xc1(X)20\int_X c_1(X)^2 \neq 0, and X[k]X^{[k]} the Hilbert scheme of zero-dimensional subschemes of XX of length kk. We give a formula which expresses the value of any complex genus on A[[n]]A^{[[n]]} in terms of Chern numbers of the varieties X[k]X^{[k]}. It is shown by Ellingsrud and Stroemme how to use Bott's residue formula to effectively calculate the Chern numbers of the Hilbert schemes (\IP2)[k](\IP^2)^{[k]} of points on the projective plane. Since \IP2c1(\IP2)2=90\int_{\IP^2} c_1(\IP^2)^2 = 9 \neq 0 we can use these numbers and our formula to calculate the Chern numbers of the generalised Kummer varieties. A table with all Chern numbers of the generalised Kummer varieties A[[n]]A^{[[n]]} for n8n \leq 8 is included.

Keywords

Cite

@article{arxiv.math/0204197,
  title  = {On the Chern numbers of the generalised Kummer varieties},
  author = {Marc Arnold Nieper-Wisskirchen},
  journal= {arXiv preprint arXiv:math/0204197},
  year   = {2007}
}

Comments

9 pages