1. Laboratory J. A. Dieudonné, UMR CNRS , University of Nice Sophia-Antipolis , Nice, France sb@math.unice.fr;3. SISSA , Trieste, Italy;4. Institute for Mathematics, University of Zürich , Zürich, Switzerland
Abstract:
We construct an isomorphism of graded Frobenius algebras between the orbifold Chow ring of weighted projective spaces and graded algebras of groups of roots of the unity.