Mathematics Colloquia and Seminars

Return to Colloquia & Seminar listing

The disjoint curve property


Speaker: Saul Schleimer, U of Illinois, Chicago
Location: 693 Kerr
Start time: Wed, Oct 29 2003, 4:10PM

As defined by Thompson, a Heegaard splitting H has the disjoint curve property if there is a triple of essential curves a, b, c in H where, first, a is disjoint from b and b is disjoint from c and, second, a and c bound disks on opposite sides of H. We'll prove that if H has sufficiently high genus (with respect to the ambient three-manifold) then H has the disjoint curve property. The proof is technical and relies extensively on normal surface theory.