English

Morphisms from $\mathbb{P}^m$ to flag varieties

Algebraic Geometry 2025-01-08 v2

Abstract

In this paper, we consider the morphisms from projective spaces to flag varieties. We show that the morphisms can only be constant under some special conditions. As a consequence, we prove that the splitting types of unsplit uniform rr-bundles on Pm\mathbb{P}^m can not be (a1,,a1,a2,,ark+1)(a_1,\dots,a_1,a_2,\dots,a_{r-k+1}) for 1km21\le k\le m-2.

Keywords

Cite

@article{arxiv.2310.08151,
  title  = {Morphisms from $\mathbb{P}^m$ to flag varieties},
  author = {Xinyi Fang and Peng Ren},
  journal= {arXiv preprint arXiv:2310.08151},
  year   = {2025}
}

Comments

12 pages, comments are welcome; Updated the reference

R2 v1 2026-06-28T12:48:23.917Z