报告时间：6月22日-24日上午9：00-11：15

报告地点：光华东主楼1415

1. Boundary of open manifold (some basic techniques and concepts for treating non-compact manifolds)

2. alpha-Approximation theorem (key to the stability of control, the combination of two epsilon-homotopies should be essentially again an epsilon-homotopy)

3. Controlled h-cobordism and surgery (adding control to the classical theories and interpret as geometric algebra)

4. Homotopically stratified space