Professor Delman's Friday Colloquium

Professor Delman gave the department colloquium talk on October 16th. The talk concerned some recent work by Lenhard Ng. Professor Ng uses the connected paths between pairs of points on a knot to construct formal polynomial rings. Equivalence classes for certain topological operations are introduced which produce the so-called Cord Ring. Professor Delman indicated how one could compute the Cord Ring for certain kinds of knots such as those that can be constructed on the surface of a torus