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    NCU Institutional Repository > 理學院 > 數學系 > 期刊論文 >  Item 987654321/51130


    Please use this identifier to cite or link to this item: http://ir.lib.ncu.edu.tw/handle/987654321/51130


    Title: Flops, motives, and invariance of quantum rings
    Authors: Lee,YP;Lin,HW;Wang,CL
    Contributors: 數學系
    Keywords: GROMOV-WITTEN INVARIANTS;COHOMOLOGY;FORMULA;THEOREM
    Date: 2010
    Issue Date: 2012-03-27 18:22:41 (UTC+8)
    Publisher: 國立中央大學
    Abstract: For ordinary flops, the correspondence defined by the graph closure is shown to give equivalence of Chow motives and to preserve the Poincare pairing. In the case of simple ordinary flops, this correspondence preserves the big quantum cohomology ring after an analytic continuation over the extended Kahler moduli space. For Mukai flops, it is shown that the birational map for the local models is deformation equivalent to isomorphisms. This implies that the birational map induces isomorphisms on the full quantum theory and all the quantum corrections attached to the extremal ray vanish.
    Relation: ANNALS OF MATHEMATICS
    Appears in Collections:[數學系] 期刊論文

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