Summary: Cappell-Shaneson homotopy 4-spheres are
standard
Selman Akbulut
Michigan State University
April 3, 2010
4-manifolds are spaces that locally look like R4
R
R4
3
M
4
() Cappell-Shaneson homotopy 4-spheres are standard April 3, 2010 2 / 16
We visualize 4-manifolds by handles
B4
B
4
1- handles
2-handles
3-handles
M

Source: Akbulut, Selman - Department of Mathematics, Michigan State University

Collections: Mathematics