Contact Cohomology of the Projective Plane

Details Contact Cohomology of the Projective Plane Contact Cohomology of the Projective Plane

1997-03-10

arxiv.org/abs/alg-geom/9703013v3

Mathematics

Algebraic Geometry

18 pages AMSLaTeX v 2e with xy-pic v 3.2; minor revison

Scientific paper

We construct an associative ring which is a deformation of the quantum
cohomology ring of the projective plane. Just as the quantum cohomology encodes
the incidence characteristic numbers of rational plane curves, the contact
cohomology encodes the tangency characteristic numbers.

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