Algebraic K-theory of toric hypersurfaces

Details Algebraic K-theory of toric hypersurfaces Algebraic K-theory of toric hypersurfaces

2008-09-26

arxiv.org/abs/0809.4669v1

Mathematics

Algebraic Geometry

139 pages, 15 figures

Scientific paper

We construct classes in the motivic cohomology of certain 1-parameter families of Calabi-Yau hypersurfaces in toric Fano n-folds, with applications to local mirror symmetry (growth of genus 0 instanton numbers) and inhomogeneous Picard-Fuchs equations. In the case where the family is classically modular the classes are related to Belinson's Eisenstein symbol; the Abel-Jacobi map (or rational regulator) is computed in this paper for both kinds of cycles. For the "modular toric" families where the cycles essentially coincide, we obtain a motivic (and computationally effective) explanation of a phenomenon observed by Villegas, Stienstra, and Bertin.

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