
We describe interdependencies among the quantum cohomology associativity relations. We strengthen the first reconstruction theorem of Kontsevich and Manin by identifying a subcollection of the associativity relations which implies the full system of WDVV equations. This provides a tool for identifying non-geometric solutions to WDVV.
LaTeX2e, 22 pages
Mathematics(all), Mathematics - Algebraic Geometry, Enumerative problems (combinatorial problems) in algebraic geometry, FOS: Mathematics, WDVV equation, 14N10, Gromov-Witten invariants, quantum cohomology, Gopakumar-Vafa invariants, Donaldson-Thomas invariants (algebro-geometric aspects), genus zero Gromov-Witten invariants, Algebraic Geometry (math.AG), Feynman diagrams
Mathematics(all), Mathematics - Algebraic Geometry, Enumerative problems (combinatorial problems) in algebraic geometry, FOS: Mathematics, WDVV equation, 14N10, Gromov-Witten invariants, quantum cohomology, Gopakumar-Vafa invariants, Donaldson-Thomas invariants (algebro-geometric aspects), genus zero Gromov-Witten invariants, Algebraic Geometry (math.AG), Feynman diagrams
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