Morphisms of CohFT algebras and quantization of the Kirwan map
classification
🧮 math.AG
math-phmath.MP
keywords
algebrascohftcohomologymorphismquantumkirwanmorphismsorbifold
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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.
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