Monthly Archives: April 2012

Pillowcases

As was discussed in an older news post, there exists a double-covering of the boundary of a torus onto the boundary of a ball – essentially a way for us to translate things on the surface of a ball to … Continue reading

Posted in Uncategorized | Leave a comment

Whiteboard from Friday, April 20th 2012

Demonstration of how adding a trivially linked component into our “pillowcase” diagrams doesn’t actually change any properties of the sum tangle Success! Multiplication of tangles can be done on a pillowcase diagram.

Posted in Friday Meeting Media | Leave a comment