ar X iv : 0 80 4 . 31 43 v 1 [ m at h . A G ] 1 9 A pr 2 00 8 RUAN ’ S CONJECTURE ON SINGULAR SYMPLECTIC FLOPS
نویسنده
چکیده
We prove that the orbifold quantum ring is preserved under singular symplectic flops. Hence we verify Ruan’s conjecture for this case.
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