Category Archives: Uncategorized

About this site

  In 1996 I was the Ulam Visiting Professor at the University of Colorado, Boulder. While I was there I gave a series of graduate lectures on high-dimensional manifold theory, which I whimsically titled Surgery for Amateurs. The title was … Continue reading

Posted in Book, Uncategorized | Leave a comment

The Poincare sphere

Following on from my previous post, I would like to add a little introduction to the Poincare homology sphere early on in Chapter 1.  This gives an opportunity to introduce the \(E_8\) plumbing in a reasonably down-to-earth context, so it … Continue reading

Posted in math, Uncategorized | Leave a comment