C. Taubes has recently defined Gromov invariants for symplectic four-manifolds and related them to the Seiberg-Witten invariants ([T1], [T2]). Independently, Y. Ruan and G. Tian defined symplectic invariants based on ideas of Witten ([RT]). While similar in spirit, these two sets of invariants are quite different in their details. In this note we show that… (More)
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