Slides of recent talks

• "End reductions and covering translations of contractible open 3-manifolds", given at the 2001 Spring Topology and Dynamical Systems Conference in Morelia, Mexico.

• "The complex of end reductions of a contractible open 3-manifold", given at the Ficofest in Merida, Mexico.

• "End reductions, fundamental groups, and covering spaces of irreducible open 3-manifolds", given at the 2003 Spring Topology and Dynamics Conference in Lubbock, Texas.

• "Constructing knots with trivial mapping class group in closed, orientable 3-manifolds", given at the March 2004 Regional American Mathematical Society Meeting in Tallahassee, Florida and at the 2004 Spring Topology and Dynamics Conference in Birmingham, Alabama.

• "Concordance of Seifert surfaces", given at the 2008 Workshop in Geometric Topology in Park City, Utah.