ADVERTISEMENT
See Inside July 2004

The Shapes of Space

A Russian mathematician has proved the century-old Poincaré conjecture and completed the catalogue of three-dimensional spaces. He might earn a $1-million prize

This article is only available as a PDF.

Select an option below:

Customer Sign In

*You must have purchased this issue or have a qualifying subscription to access this content

Share this Article:

Comments

You must sign in or register as a ScientificAmerican.com member to submit a comment.
Scientific American Holiday Sale

Scientific American Mind Digital

Get 6 bi-monthly digital issues
+ 1yr of archive access for just $9.99

Hurry this offer ends soon! >

X

Email this Article

X

Next Article