Orbifold cohomology of abelian symplectic reductions and the case of weighted projective spaces

@inproceedings{Holm2007OrbifoldCO,
title={Orbifold cohomology of abelian symplectic reductions and the case of weighted projective spaces},
author={Tara S. Holm},
year={2007}
}

These notes accompany a lecture about the topology of symplectic (and other) quotients. The aim is two-fold: first to advertise the ease of computation in the symplectic category; and second to give an account of some new computations for weighted projective spaces. We start with a brief exposition of how orbifolds arise in the symplectic category, and discuss the techniques used to understand their topology. We then show how these results can be used to compute the Chen-Ruan orbifold… CONTINUE READING