Stokes Matrices and Monodromy of the Quantum Cohomology of Projective Spaces

Abstract

We compute Stokes matrices and monodromy for the quantum cohomology of projective spaces. We prove that the Stokes' matrix of the quantum cohomology coincides with the Gram matrix in the theory of derived categories of coherent sheaves.Comment: 50 pages, 6 Postscript figure