paper

The Satake sextic in elliptic fibrations on K3

arXiv:1609.04341 · doi:10.1016/j.geomphys.2017.06.010

Abstract

We describe explicit formulas relevant to the F-theory/heterotic string duality that reconstruct from a specific Jacobian elliptic fibration on the Shioda-Inose surface covering a generic Kummer surface the corresponding genus-two curve using the level-two Satake coordinate functions. We derive explicitly the rational map on the moduli space of genus-two curves realizing the algebraic correspondence between a sextic curve and its Satake sextic. We will prove that it is not the original sextic defining the genus-two curve, but its corresponding Satake sextic which is manifest in the F-theory model, dual to the heterotic string with an unbroken gauge algebra.

23 pages

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