Koç Üniversitesi Matematik Bölümü Genel Seminerleri
Homology 3-spheres bounding contractible 4-manifolds and homology 4-balls
Oğuz Şavk
Boğaziçi University, Türkiye
A central problem in low-dimensional topology asks which homology 3-spheres bound contractible 4-manifolds and homology 4-balls.
In this talk, we address this problem for plumbed 3-manifolds and we present the classical and new results. Our approach is based on Mazur’s
famous argument and its generalization, they together provide a unification of all recognized results.
NOT:
If you would like to attend the seminar online, please send an email to Asgar Jamneshan at ajamneshan@ku.edu.tr for the Zoom link.
