2 papers
hep-th1994
Quantum intersection rings
P. Di Francesco, C. Itzykson
We examine a few problems of enumerative geometry and present their solutions in the framework of deformed (quantum) cohomology rings.
hep-th1992
A Generating Function for Fatgraphs
P. Di Francesco, C. Itzykson
We study a generating function for the sum over fatgraphs with specified valences of vertices and faces, inversely weighted by the order of their symmetry group. A compact expressi…