English

On relative and overconvergent de Rham-Witt cohomology for log schemes

Number Theory 2016-10-18 v2

Abstract

We construct the relative log de Rham-Witt complex. This is a generalization of the relative de Rham-Witt complex of Langer-Zink to log schemes. We prove the comparison theorem between the hypercohomology of the log de Rham-Witt complex and the relative log crystalline cohomology in certain cases. We construct the pp-adic weight spectral sequence for relative proper strict semistable log schemes. When the base log scheme is a log point, We show it degenerates at E2E_2 after tensoring with the fraction field of the Witt ring. We also extend the definition of the overconvergent de Rham-Witt complex of Davis-Langer-Zink to log schemes (X,D)(X,D) associated with smooth schemes with simple normal crossing divisor over a perfect field. Finally, we compare its hypercohomology with the rigid cohomology of XDX \setminus D.

Keywords

Cite

@article{arxiv.1502.02854,
  title  = {On relative and overconvergent de Rham-Witt cohomology for log schemes},
  author = {Hironori Matsuue},
  journal= {arXiv preprint arXiv:1502.02854},
  year   = {2016}
}

Comments

64 Pages, To appear in the Mathematische Zeitschrift