English

On diminished multiplier ideal and the termination of flips

Algebraic Geometry 2025-04-03 v4

Abstract

In this paper, we develop a theory of diminished multiplier ideals on singular varieties which was introduced by Hacon, and developed by Lehmann. We prove a result regarding the termination of certain type of flips with scaling of an ample divisor if the Cartier index is bounded, and if κσ(KX+Δ)dimX1\kappa_{\sigma}(K_X+\Delta)\ge \dim X-1 holds. The proof uses a theory of diminished multiplier ideal.

Keywords

Cite

@article{arxiv.2405.11902,
  title  = {On diminished multiplier ideal and the termination of flips},
  author = {Donghyeon Kim},
  journal= {arXiv preprint arXiv:2405.11902},
  year   = {2025}
}

Comments

Comments are welcome. There is a major revision on this paper, especially Section 3