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- FIELD
- Mathematics
- DATE
-
Jun 08 (Thu), 2023
- TIME
- 16:00 ~ 17:00
- PLACE
- 1424
- SPEAKER
- Lee, Seungjai
- HOST
- Kim, Daejun
- INSTITUTE
- 서울대학교
- TITLE
- [GS_M_NT] Zeta functions of Lie rings and their associate varieties
- ABSTRACT
- Let $L$ be a finite-dimensional $\mathbb{Z}$-Lie algebra (also called a Lie ring), and for a prime $p$ let $L_p:=L\otimes \mathbb{Z}_p$, where $\mathbb{Z}_p$ is the usual ring of $p$-adic integers. We call $\zeta_{L_{p}}^{\triangleleft}(s):=\sum_{H\triangleleft L_{p}}|L_p:H|^{-s}$ the local ideal zeta functions of $L$, enumerating ideals of finite index in $L_p$.
In this talk, we show how these local factors $\zeta_{L_{p}}^{\triangleleft}(s)$ can be expressed in terms of certain $p$-adic integrals, allowing us to associate $L$ with certain algebraic varieties intrinsically encoded in its structure. Then we discuss how, under certain conditions, one can control and study these varieties.
- FILE
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