Flops, motives, and invariance of quantum rings

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題名:	Flops, motives, and invariance of quantum rings
作者:	Lee,YP;Lin,HW;Wang,CL
貢獻者:	數學系
關鍵詞:	GROMOV-WITTEN INVARIANTS;COHOMOLOGY;FORMULA;THEOREM
日期:	2010
上傳時間:	2012-03-27 18:22:41 (UTC+8)
出版者:	國立中央大學
摘要:	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.
關聯:	ANNALS OF MATHEMATICS
顯示於類別:	[數學系] 期刊論文

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