English

Monotone Lagrangians in flag varieties

Symplectic Geometry 2019-11-13 v3

Abstract

In this paper, we give a formula for the Maslov index of a gradient holomorphic disc, which is a relative version of the Chern number formula of a gradient holomorphic sphere for a Hamiltonian S1S^1-action. Using the formula, we classify all monotone Lagrangian non-toric fibers of Gelfand-Cetlin systems on partial flag manifolds.

Cite

@article{arxiv.1801.07554,
  title  = {Monotone Lagrangians in flag varieties},
  author = {Yunhyung Cho and Yoosik Kim},
  journal= {arXiv preprint arXiv:1801.07554},
  year   = {2019}
}

Comments

33pages, 20 figures. To appear in IMRN

R2 v1 2026-06-22T23:53:05.150Z