- #1
- 7,008
- 10,466
Hi, everyone:
I wonder if anyone knows the actual definition of
having a surface represent a homology class. Sorry to bother with
just a definition, but I have not been able to find one , neither in books
nor online. I am reading
that a certain surface represents H_2(M,Z) , the second homology
class of an orientable manifold. All I can see is mention of
the inclusion map (and its pushforward), and the fundamental
class ( a generator of top homology).
Anyone know the def., or can give me a link/reference?
Thanks.
I wonder if anyone knows the actual definition of
having a surface represent a homology class. Sorry to bother with
just a definition, but I have not been able to find one , neither in books
nor online. I am reading
that a certain surface represents H_2(M,Z) , the second homology
class of an orientable manifold. All I can see is mention of
the inclusion map (and its pushforward), and the fundamental
class ( a generator of top homology).
Anyone know the def., or can give me a link/reference?
Thanks.