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- W1982078218 abstract "For a one-parameter family of Calabi-Yau d-fold embedded in CPd+1 we analyze the hermitian metrics on the moduli space of the non-linear sigma model by topological field techniques. The set of equations turns out to be the non-affine A-type Toda equation. It is contrasted with the CPd+1 case where the affine Toda equation appears. We obtain exact solutions of the hermitian metrics and associate their non-perturbative corrections to the holomorphic maps. In particular for the quintic case, the coefficients in the q-expansion are given by the number of rational curves. From these data, we construct the genus one partition function F1 of the topological sigma model by the method of the holomorphic anomaly. In the asymmetrical limit of the Kähler parameter t → ∞, the contribution from the A∗-part is decoupled and we obtain the partition function of A-matter coupled with topological gravity at the stringy one-loop level. The coefficients of the series expansion are related with the integrals of the top Chem class of some vector bundle over the stable maps with definite degrees. We also comment on the behavior of the F1 near the conifold locus." @default.
- W1982078218 created "2016-06-24" @default.
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- W1982078218 date "1996-01-01" @default.
- W1982078218 modified "2023-10-16" @default.
- W1982078218 title "The Calabi-Yau moduli and the Toda equations" @default.
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- W1982078218 doi "https://doi.org/10.1016/0550-3213(95)00561-7" @default.
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