16 Oct
2003
16 Oct
'03
1:28 p.m.
--- Dylan Thurston <dpt@exoskeleton.math.harvard.edu> wrote:
(There is some confusion in terminology, between the concepts of "trivial fundamental group" and "homotopy equivalent to S^n". Among topologists, "simply connected" always means the former, as far as I know. The two conditions are equivalent for 3-manifolds.)
What does "homotopy equivalent to S^n" mean? __________________________________ Do you Yahoo!? The New Yahoo! Shopping - with improved product search http://shopping.yahoo.com