April 23, 2014

Modular forms around string theory
Project Information for Prospective Students

Supervisor: Noriko Yui (Queen's University)
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Project Information:

1. You should learn about the Weil Conjectures (which are theorems) for smooth varieties over finite fields, e.g.,
the Galois representations, the determination of the zeta-function. See Weil Conjectures in wikipedia for a start.

2. Basics on modular forms (classical modular forms, quasimodular forms, Hilbert, Siegel modular forms)
The book by Zagier et al. the 1-2-3 of modular forms.

3. Modularity theorems for some Calabi-Yau varieties over Q or number fields
The book by Ch. Meyer FIM 22 would be a good start.

What we want to work on during the summer is to understand how to compute the zeta-functions and more generally L-series for families of
Calabi-Yau varieties, starting with one or more parameter families of hypersurfaces. For instance, some work has been done already for the Dwork families, i.e., one-parameter family of quartic K3 surfaces, one-parameter family of quintic CY threefolds, and D. Wan's work on arithmetic mirror symmetry.

Our hope is to try with two-or-three parameter families of Calabi-Yau threefolds.

Here are some of the articles you should read before your arrival at the Fields Institute. You should try to make yourself familiar with the articles with *.

Yui, N.
*Update on the modularity of Calabi-Yau varieties with appendix by H. Verrill, in FIC 38

Yui, N. et al.
Arithmetic and Geometry of K3 surfaces and Calabi-Yau threefolds, FIC 64

Yui, N.
Modularity of Calabi-Yau varieties: 2011 and beyond in FIC 67.

Lee, Edward
*Update on modular non-rigid Calabi-Yau threefolds, in FIC 54

Goto, Y, Kloosterman, R., and Yui, N.
*Zeta-functions of certain K3-fibered Calabi-Yau threefolds
Internat. J. Math. 22, no-.1 2011.

Garbagnati, A., and van Geemen, B.
*The Picard-Fuchs equations of a family of Calabi-Yau threefolds without maximal unipotent monodromy, Int. Math. Res. Notes 16, 3134-3143 (2010).

Garbagnati, A.
*New families of Calabi-Yau threefolds without maximal unipotent monodromy, Manuscr. Math. 140, 273-294 (2013).

D. Wan
*Mirror symmetry for zeta functions, in Mirror Symmetry V Moment zeta-function Arithmetic mirror symmetry

P. Candels et al.
*Zeta-function of quintic Calabi-Yau threefolds

S. Kadir
*Arithmetic of mirror symmetry for two-parameter family of Calabi-Yau manifolds, in Mirror Symmetry V

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