3 papers
math.AT2026
Cohomological rigidity of smooth toric Fano fourfolds
Suyoung Choi
We prove that any two smooth toric Fano fourfolds whose integral cohomology rings are isomorphic as graded rings are diffeomorphic.
math.AG2026
Symplectic and projective small covers over products of polygons
Suyoung Choi
We study symplectic and projective structures on small covers over products of polygons. We introduce the factor-compatible class for small covers over products of polygons and pro…
math.SG2026
Symplectic small covers in dimension four
Suyoung Choi
We study symplectic structures on four-dimensional small covers. Our main result shows that every symplectic four-dimensional small cover is aspherical. We then classify symplectic…