Event time:

Thursday, October 4, 2007 - 12:30pm to Wednesday, October 3, 2007 - 8:00pm

Location:

431 DL

Speaker:

Jesse Johnson

Speaker affiliation:

Yale

Event description:

The mapping class group of a Heegaard splitting is the group

of (isotopy classes of) automorphisms of

the ambient 3-manifold that take the Heegaard surface onto itself. I

will describe a number of

elements of the mapping class group of a genus three Heegaard splitting

of the 3-torus and

outline the key points of a proof that these elements generate the

entire group.