Mathematics – Differential Geometry
Scientific paper
1995-11-23
Mathematics
Differential Geometry
44 pages, LaTeX2e, uses the XY-Pic macros for diagrams
Scientific paper
We define a homomorphism from (a certain extension of) the fundamental group of the Hamiltonian automorphism group of a symplectic manifold to the group of invertibles in its quantum cohomology ring. The manifold must satify a technical condition similar to weak monotonicity. This revised version has been entirely rewritten. It is more general and contains new examples and applications.
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