8 citations · 14 across the 14 of their papers we have counts for
7 papers · 1 filter
Hamiltonian circle action with self-indexing moment map
Yunhyung Cho, Min Kyu Kim
Let be a -dimensional smooth compact symplectic manifold equipped with a Hamiltonian circle action with only isolated fixed points and let be a co…
Hard Lefschetz Property for Hamiltonian torus actions on 6-dimensional GKM manifolds
Yunhyung Cho, Min Kyu Kim
In this paper, we study the hard Lefschetz property of a symplectic manifold which admits a Hamiltonian torus action. More precisely, let be a 6-dimensional compact symplec…
Unimodality of the Betti numbers for Hamiltonian circle action with isolated fixed points
Yunhyung Cho, Min Kyu Kim
Let be an eight-dimensional closed symplectic manifold equipped with a Hamiltonian circle action with only isolated fixed points. In this article, we will show that the Bet…
An example of circle actions on symplectic Calabi-Yau manifolds with non-empty fixed points
Yunhyung Cho, Min Kyu Kim
Let be a compact Kähler Calabi-Yau manifold equipped with a symplectic circle action. By Frankel's theorem \cite{F}, the action on is non-Hamiltonian and does not…
Embedded surfaces for symplectic circle actions
Yunhyung Cho, Min Kyu Kim, Dong Youp Suh
The purpose of this article is to characterize symplectic and Hamiltonian circle actions on symplectic manifolds in terms of symplectic embeddings of Riemann surfaces. More precise…
Log-concavity of complexity one Hamiltonian torus actions
Yunhyung Cho, Min Kyu Kim
Let be a closed -dimensional symplectic manifold equipped with a Hamiltonian -action. Then Atiyah-Guillemin-Sternberg convexity theorem implies that the image…