2 papers
math.GT2018
Spherical 3-manifolds bounding rational homology balls
Dong Heon Choe, Kyungbae Park
We give a complete classification of the spherical 3-manifolds that bound smooth rational homology 4-balls. Furthermore, we determine the order of spherical 3-manifolds in the rati…
math.GT2017
On intersection forms of definite 4-manifolds bounded by a rational homology 3-sphere
Dong Heon Choe, Kyungbae Park
We show that, if a rational homology 3-sphere bounds a positive definite smooth 4-manifold, then there are finitely many negative definite lattices, up to the stable-equivalenc…