© | Dror Bar-Natan: Classes: 2004-05: Math 1300Y - Topology: | (96) |
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This document in PDF: CupExample.pdf

From this picture (drawn with help from Jacob Tsimerman) we can read the following:

**Exercise. ** Verify that
is also a generator of
, but note that in we have
so the
cup product is not commutative!

**The Hopf Fibration** as drawn by Penrose and Rindler:

The generation of this document was assisted by
L^{A}TEX2`HTML`.

Dror Bar-Natan 2005-04-28