Cubic Differentials in the Differential Geometry of Surfaces

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Publication details

Title of host publicationHandbook of Teichmueller Theory
DateAccepted/In press - 2015
Number of pages47
PublisherEuropean Mathematical Society
EditorsAthanase Papadopoulos
Original languageEnglish
ISBN (Print)978-3-03719-160-6


We discuss the local differential geometry of convex affine spheres in $\re^3$ and of minimal Lagrangian surfaces in Hermitian symmetric spaces. In each case, there is a natural metric and cubic differential holomorphic with respect to the induced conformal structure: these data come from the Blaschke metric and Pick form for the affine spheres and from the induced metric and second fundamental form for the minimal Lagrangian surfaces. The local geometry, at least for main cases of interest, induces a natural frame whose structure equations arise from the affine Toda system for $\mathfrak a^{(2)}_2$. We also discuss the global theory and applications to representations of surface groups and to mirror symmetry.

    Research areas

  • math.DG, math.GT, 53C43 (primary), 20H10, 53A15 (secondary)

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