3 papers
math.NT2025
Non-commutative Iwasawa theory of abelian varieties over global function fields
Li-Tong Deng, Yukako Kezuka, Yong-Xiong Li +1
Let be an abelian variety defined over a global function field , and let be a prime distinct from the characteristic of . Let be a -adic Lie extension o…
math.NT2025
Non-vanishing of central -values of the Gross family of elliptic curve
Yukako Kezuka, Yong-Xiong Li
We prove non-vanishing theorems for the central values of -series of quadratic twists of the Gross elliptic curve with complex multiplication by the imaginary quadratic field $\…
math.NT2024
On central -values and the growth of the -part of the Tate-Shafarevich group
Yukako Kezuka
Given any cube-free integer , we study the -adic valuation of the algebraic part of the central -value of the elliptic curve We give a lower bound in…