Corpus ID: 119592746

A GIT construction of degenerations of Hilbert schemes of points

  title={A GIT construction of degenerations of Hilbert schemes of points},
  author={Martin G. Gulbrandsen and L. H. Halle and K. Hulek},
  journal={arXiv: Algebraic Geometry},
We present a Geometric Invariant Theory (GIT) construction which allows us to construct good projective degenerations of Hilbert schemes of points for simple degenerations. A comparison with the construction of Li and Wu shows that our GIT stack and the stack they construct are isomorphic, as are the associated coarse moduli schemes. Our construction is sufficiently explicit to obtain good control over the geometry of the singular fibres. We illustrate this by giving a concrete description of… Expand
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