2014
Ce document est lié à :
http://archipel.uqam.ca/8605/
Ce document est lié à :
http://dx.doi.org/10.1112/jlms/jdu038
Ce document est lié à :
doi:10.1112/jlms/jdu038
Ljudmila Kamenova et al., « Kobayashi pseudometric on hyperkahler manifolds », UQAM Archipel : articles scientifiques, ID : 10670/1.2sc5g2
The Kobayashi pseudometric on a complex manifold M is the maximal pseudometric such that any holomorphic map from the Poincaré disk to M is distance-decreasing. Kobayashi has conjectured that this pseudometric vanishes on Calabi-Yau manifolds. Using ergodicity of complex structures, we prove this result for any hyperk¨ahler manifold if it admits a deformation with a Lagrangian fibration, and its Picard rank is not maximal. The SYZ conjecture claims that any parabolic nef line bundle on a deformation of a given hyperkähler manifold is semi-ample. We prove that the Kobayashi pseudometric vanishes for all hyperkähler manifolds satisfying the SYZ property. This proves the Kobayashi conjecture for K3 surfaces and their Hilbert schemes.