English

Logarithmic Gysin sequences for regular immersions

Algebraic Geometry 2024-04-15 v2

Abstract

For a regular immersion of schemes ZXZ\to X and a cohomology theory of fs log schemes, we formulate the logarithmic Gysin sequence using the "logarithmic compactification" (BlZX,E)(\mathrm{Bl}_Z X,E) instead of the open complement XZX-Z, where EE is the exceptional divisor. We show that all A1\mathbb{A}^1-invariant cohomology theories produced from motivic spectra and various non A1\mathbb{A}^1-invariant cohomology theories like Nygaard completed prismatic cohomology admit logarithmic Gysin sequences.

Keywords

Cite

@article{arxiv.2404.04082,
  title  = {Logarithmic Gysin sequences for regular immersions},
  author = {Doosung Park},
  journal= {arXiv preprint arXiv:2404.04082},
  year   = {2024}
}

Comments

16 pages. Minor updates

R2 v1 2026-06-28T15:45:07.519Z