Corpus ID: 208175644

Prelog Chow rings and degenerations

@article{Bohning2019PrelogCR,
  title={Prelog Chow rings and degenerations},
  author={Christian Bohning and H. G. Bothmer and Michel van Garrel},
  journal={arXiv: Algebraic Geometry},
  year={2019}
}
  • Christian Bohning, H. G. Bothmer, Michel van Garrel
  • Published 2019
  • Mathematics
  • arXiv: Algebraic Geometry
  • For a simple normal crossing variety X, we introduce the concepts of prelog Chow ring, saturated prelog Chow group, as well as their counterparts for numerical equivalence. Thinking of X as the central fibre in a (strictly) semistable degeneration, these objects can intuitively be thought of as consisting of cycle classes on X for which some initial obstruction to arise as specializations of cycle classes on the generic fibre is absent. After proving basic properties for prelog Chow rings and… CONTINUE READING

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