Yunhyung Cho

activity

20102026

most citedOn the f-vectors of Gelfand-Cetlin polytopes

26 citations · 70 across the 33 of their papers we have counts for

collaborators

Showing 2018Show all

3 papers · 1 filter

math.SG2018

Classification of six dimensional monotone symplectic manifolds admitting semifree circle actions I

Yunhyung Cho

Let $(M, ω_{M})$ be a six dimensional closed monotone symplectic manifold admitting an effective semifree Hamiltonian $S^{1}$ -action. We show that if the minimal (or maximal) fixed comp…

math.SG2018★ 1 cited

Lagrangian fibers of Gelfand--Cetlin systems of $SO (n)$ -type

Yunhyung Cho, Yoosik Kim

In this paper, we study the Gelfand--Cetlin systems and polytopes of the co-adjoint $SO (n)$ -orbits. We describe the face structure of Gelfand--Cetlin polytopes and iterate…

math.SG2018★ 5 cited

Monotone Lagrangians in flag varieties

Yunhyung Cho, Yoosik Kim

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…

Classification of six dimensional monotone symplectic manifolds admitting semifree circle actions I

Lagrangian fibers of Gelfand--Cetlin systems of SO(n)-type

Monotone Lagrangians in flag varieties

Lagrangian fibers of Gelfand--Cetlin systems of $SO (n)$ -type