Given a variation of Hodge structure over P
1 with Hodge numbers (1, 1, . . . , 1),
we show how to compute the degrees of the Deligne extension of its Hodge bundles, following Eskin–Kontsevich–M¨oller–Zorich, by using the local exponents of the corresponding Picard–Fuchs equation. This allows us to compute the Hodge numbers of Zucker’s Hodge structure on the corresponding parabolic cohomology groups. We also apply this to families of elliptic
curves, K3 surfaces and Calabi–Yau threefolds.
Funding
A. Thompson (University of Warwick/University of Cambridge) was supported by the Engineering and Physical Sciences Research Council programme grant Classification, Computation, and Construction: New Methods in Geometry.
History
School
Science
Department
Mathematical Sciences
Published in
Symmetry, Integrability and Geometry: Methods and Applications
Citation
DORAN, C.F., HARDER, A. and THOMPSON, A., 2017. Hodge numbers from Picard-Fuchs equations. Symmetry, Integrability and Geometry: Methods and Applications, 13: 045.
This work is made available according to the conditions of the Creative Commons Attribution-ShareAlike 4.0 International (CC BY-SA 4.0) licence. Full details of this licence are available at: http://creativecommons.org/licenses/by-sa/4.0/
Acceptance date
2017-06-12
Publication date
2017-06-18
Notes
This is an Open Access Article. It is published by Sigmaa under the Creative Commons Attribution-ShareAlike 4.0 International (CC BY-SA 4.0) licence. Full details of this licence are available at: http://creativecommons.org/licenses/by-sa/4.0/