English

Morphisms of CohFT algebras and quantization of the Kirwan map

Algebraic Geometry 2012-12-07 v6 Mathematical Physics math.MP

Abstract

We introduce a notion of morphism of CohFT algebras, based on the analogy with A-infinity morphisms. We discuss a "quantization" of the classical Kirwan morphism to a morphism of CohFT algebras from the equivariant quantum cohomology of a G-variety to the quantum cohomology of its git or symplectic quotient, and an example relating to the orbifold quantum cohomology of a compact toric orbifold. Finally we identify the space of Cartier divisors on the moduli space of scaled marked curves; these appear in the splitting axiom.

Keywords

Cite

@article{arxiv.0903.4459,
  title  = {Morphisms of CohFT algebras and quantization of the Kirwan map},
  author = {Khoa Lu Nguyen and Chris Woodward and Fabian Ziltener},
  journal= {arXiv preprint arXiv:0903.4459},
  year   = {2012}
}

Comments

32 pages, 5 figures. Minor changes in this revision