Aliakbar Daemi, Simons Center for Geometry and Physics, Chern-Simons functional and the Homology Cobordism Group
SAS 4201The set of 3-manifolds with the same homology as the 3-dimensional sphere, modulo an equivalence relation called homology cobordance, forms a group. The additive structure of this group is given by taking connected sum. This group is called the homology cobordism group and plays a special role in low dimensional topology and knot theory. In this talk, I…