Realisations of Kummer-Chern-Eisenstein-Motives

Generalized Kummer congruences and $p$-adic families of motives

We describe some new general constructions of $p$-adic $L$-functions attached to certain arithmetically defined complex $L$-functions coming from motives over $\bold Q$ with coefficiens in a number field $T$, with $[T:\bold Q]<\infty$. These constructions are equivalent to proving some generalized Kummer congruences for critical special values of these complex $L$-functions.

On the motive of Kummer varieties associated to $Γ_1(7)$ - Supplement to the paper: The modularity of certain non-rigid Calabi-Yau threefolds (by R. Livné and N. Yui)

In their paper Livné and Yui (math.AG/0304497) discuss several examples of non-rigid 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 their paper, 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 treat the case associated to the group Gamma_1(7) in detail, but our technique also …

Kummer结构的数量与广义Kummer曲面模空间

Number of Kummer structures and Moduli spaces of generalized Kummer surfaces

本文研究广义Kummer曲面的Kummer结构数量与模空间分类，发现代数情形下数量与Shimura曲线上3阶椭圆点相关，非代数情形仅一个结构，并证明相关四元数序由判别式决定。

Hecke特征标与Picard曲面的Eisenstein上同调的Bloch-Beilinson猜想

Bloch-Beilinson conjectures for Hecke characters and Eisenstein cohomology of Picard surfaces

本文研究Hecke特征标与Picard曲面的Eisenstein上同调之间的Bloch-Beilinson猜想，通过构造Hodge结构延伸并计算双延伸高度来验证其非平凡性。

Non-abelian $p$-adic $L$-functions and Eisenstein series of unitary groups; the CM method

In this work we prove the so-called "torsion congruences" between abelian $p$-adic $L$-functions that are related to automorphic representations of definite unitary groups. These congruences play a central role in the non-commutative Iwasawa theory as it became clear in the works of Kakde, Ritter and Weiss on the non-abelian Main Conjecture for the Tate motive. We tackle these congruences for a general definite unitary group of $n$ variables and we obtain more explicit results in the special cases of $n=1$ and $n=2$. In both of these cases we also explain their implications for some particular…

On the Mazur--Tate conjecture for prime conductor and Mazur's Eisenstein ideal

In 1995, Ehud de Shalit proved an analogue of a conjecture of Mazur--Tate for the modular Jacobian $J_0(p)$. His main result was valid away from the Eisenstein primes. We complete the work of de Shalit by including the Eisenstein primes, and give some applications such as an elementary combinatorial identity involving discrete logarithms of difference of supersingular $j$-invariants. An important tool is our recent work on the so called "generalized cuspidal $1$-motive".