a Department of Cognition and Perception, University of Michigan, Ann Arbor, MI 48109, USA
b Mathematics Department, University of California, Santa Barbara, CA USA
Abstract:
In [Topology Appl. 90 (1998) 135] Scharleman showed that a strongly irreducible Heegaard splitting surface Q of a 3-manifold M can, under reasonable side conditions, intersect a ball or a solid torus in M in only a few possible ways. Here we extend those results to describe how Q can intersect a handlebody in M.