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math.DG2025
Hamiltonian circle action, invariant hypersurface and the complex projective space
Ping Li
Let be a -dimensional closed symplectic manifold admitting a Hamiltonian circle action with isolated fixed points. We show that if contains an -invariant symplecti…
math.DG2025
Chern numbers on positive vector bundles and combinatorics
Ping Li
Combinatorial ideas are developed in this article to study Chern numbers on ample and numerically effective vector bundles. An effective lower bound for Chern numbers of ample vect…