English

On structures and discrepancies of klt Calabi--Yau pairs

Algebraic Geometry 2024-10-03 v2

Abstract

We study the structures of klt Calabi--Yau pairs. We show that the discrepancies of log centers of all klt Calabi--Yau varieties with fixed dimension are in a finite set. As a corollary, we show that the index of 4-dimensional non-canonical Calabi--Yau variety is bounded.

Keywords

Cite

@article{arxiv.2405.13321,
  title  = {On structures and discrepancies of klt Calabi--Yau pairs},
  author = {Junpeng Jiao},
  journal= {arXiv preprint arXiv:2405.13321},
  year   = {2024}
}

Comments

28 pages. Remove Theorem 1.3 and 1.8 in the first version