## Journal of Mathematics of Kyoto University

### On the motive of Kummer varieties associated to $\Gamma_1(7)$ – Supplement to the paper: The modularity of certain non-rigid Calabi-Yau threefolds (by R. Livné and N. Yui)

#### Abstract

In their paper [LY] Livné and Yui discuss several examples of nonrigid Calabi-Yau varieties which admit semi-stable $K3$-fibrations with 6 singular fibres over a base which is a rational modular curve. They also establish the modularity of the $L$-function of these examples. The purpose of this note is to point out that the examples which were listed in [LY] but which do not lead to semi-stable fibrations are still modular in the sense that their $L$-function is associated to modular forms. We shall treat the case associated to the group $\Gamma _{1}(7)$ in detail, but our technique also works in the other cases given in [LY]. We shall also make some comments concerning the Kummer construction for fibre products of elliptic surfaces in general.

#### Article information

Source
J. Math. Kyoto Univ., Volume 45, Number 4 (2005), 667-681.

Dates
First available in Project Euclid: 14 August 2009

https://projecteuclid.org/euclid.kjm/1250281651

Digital Object Identifier
doi:10.1215/kjm/1250281651

Mathematical Reviews number (MathSciNet)
MR2226624

Zentralblatt MATH identifier
1106.14023

#### Citation

Hulek, Klaus; Verrill, Helena A. On the motive of Kummer varieties associated to $\Gamma_1(7)$ – Supplement to the paper: The modularity of certain non-rigid Calabi-Yau threefolds (by R. Livné and N. Yui). J. Math. Kyoto Univ. 45 (2005), no. 4, 667--681. doi:10.1215/kjm/1250281651. https://projecteuclid.org/euclid.kjm/1250281651