Abstract

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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Additional Information

ISSN
1080-6377
Print ISSN
0002-9327
Pages
pp. 73-96
Launched on MUSE
1999-02-01
Open Access
No
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