04 12 11 9 v 1 1 2 D ec 2 00 4 Some remarks on Gopakumar-Vafa invariants
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We show that Gopakumar-Vafa (GV) invariants can be expressed in terms of the cohomology ring of moduli space of D-branes without reference to the (sl2)L ⊕ (sl2)R action.
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