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Related papers: Aspects of Iwasawa theory over function fields

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We prove an Iwasawa Main Conjecture for the class group of the $\mathfrak{p}$-cyclotomic extension $\mathcal{F}$ of the function field $\mathbb{F}_q(\theta)$ ($\mathfrak{p}$ is a prime of $\mathbb{F}_q[\theta]\,$), showing that its Fitting…

Number Theory · Mathematics 2015-04-14 Bruno Anglès , Andrea Bandini , Francesc Bars , Ignazio Longhi

In this paper, we study a (p-adic) geometric analogue for abelian varieties over a function field of characteristic p of the cyclotomic Iwasawa theory and the non-commutative Iwasawa theory for abelian varieties over a number field…

Number Theory · Mathematics 2009-11-13 Tadashi Ochiai , Fabien Trihan

We study a geometric analogue of the Iwasawa Main Conjecture for abelian varieties in the two following cases: constant ordinary abelian varieties over $Z_p^d$-extensions of function fields ($d\geq 1$) ramified at a finite set of places,…

Number Theory · Mathematics 2013-04-29 King Fai Lai , Ignazio Longhi , Ki-Seng Tan , Fabien Trihan

We study equivariant Iwasawa theory for two-variable abelian extensions of an imaginary quadratic field. One of the main goals of this paper is to describe the Fitting ideals of Iwasawa modules using $p$-adic $L$-functions. We also provide…

Number Theory · Mathematics 2020-08-10 Takenori Kataoka

We formulate integral Iwasawa main conjectures for suitable twists of a newform $f$ that is non-ordinary at $p$, over the cyclotomic $\mathbb{Z}_p$-extension, the anticyclotomic $\mathbb{Z}_p$-extensions (in both the definite and the…

Number Theory · Mathematics 2019-05-08 Kazim Buyukboduk , Antonio Lei

Let $\ell$ and $p$ be distinct primes, and let $\G$ be an abelian pro-$p$-group. We study the structure of the algebra $\L:=\Z_\ell[[\G]]$ and of $\L$-modules. The algebra $\L$ turns out to be a direct product of copies of ring of integers…

Number Theory · Mathematics 2025-05-29 Andrea Bandini , Ignazio Longhi

Greenberg examined the local behavior of Iwasawa invariants as functions on the the set of all $\mathbb{Z}_p$-extensions of a number field $F$. Kleine later extended these ideas to explore the variation of Iwasawa invariants in the context…

Number Theory · Mathematics 2025-06-30 Sohan Ghosh

Iwasawa made the fundamental discovery that there is a close connection between the ideal class groups of $\mathbb{Z}_{p}$-extensions of cyclotomic fields and the $p$-adic analogue of Riemann's zeta functions…

Number Theory · Mathematics 2015-08-10 Su Hu , Min-Soo Kim

Let $A$ be an abelian variety over a global field $K$ of characteristic $p \ge 0$. If $A$ has nontrivial (resp. full) $K$-rational $l$-torsion for a prime $l \neq p$, we exploit the fppf cohomological interpretation of the $l$-Selmer group…

Number Theory · Mathematics 2019-02-20 Kestutis Cesnavicius

We establish a duality result proving the `functional equation' of the characteristic ideal of the Selmer group associated to a nearly ordinary Hilbert modular form over the cyclotomic $\mathbb{Z}_{p}$ extension of a totally real number…

Number Theory · Mathematics 2015-04-28 Somnath Jha , Dipramit Majumdar

Let $A$ be an abelian variety defined over a global function field $F$, and let $p$ be a prime distinct from the characteristic of $F$. Let $F_\infty$ be a $p$-adic Lie extension of $F$ that contains the cyclotomic $\mathbb{Z}_p$-extension…

Number Theory · Mathematics 2025-12-03 Li-Tong Deng , Yukako Kezuka , Yong-Xiong Li , Meng Fai Lim

Let $A$ be an abelian variety defined over a global field $F$ of positive characteristic $p$ and let $\calf/F$ be a $\Z_p^{\N}$-extension, unramified outside a finite set of places of $F$. Assuming that all ramified places are totally…

Number Theory · Mathematics 2014-07-22 Andrea Bandini , Francesc Bars , Ignazio Longhi

Let F be a global function field of characteristic p with ring of integers A and let \Phi be a Hayes module on the Hilbert class field H(A) of F. We prove an Iwasawa Main Conjecture for the Z_p^\infty-extension F/F generated by the…

Number Theory · Mathematics 2021-03-18 Andrea Bandini , Edoardo Coscelli

The main conjectures in Iwasawa theory predict the relationship between the Iwasawa modules and the $p$-adic $L$-functions. Using a certain proved formulation of the main conjecture, Greither and Kurihara described explicitly the (initial)…

Number Theory · Mathematics 2020-06-09 Takenori Kataoka

We prove the Iwasawa main conjecture over the arithmetic $\mathbb{Z}_p$-extension for semistable abelian varieties over function fields of characteristic $p>0$.

Number Theory · Mathematics 2014-06-25 King Fai Lai , Ignazio Longhi , Ki-Seng Tan , Fabien Trihan

The $p^\infty$-fine Selmer group of an elliptic curve $E$ over a number field $F$ is a subgroup of the classical $p^\infty$-Selmer group of $E$ over $F$. Fine Selmer group is closely related to the 1st and 2nd Iwasawa cohomology groups.…

Number Theory · Mathematics 2025-09-11 Sohan Ghosh , Somnath Jha , Sudhanshu Shekhar

Fix two distinct odd primes $p$ and $q$. We study "$p\ne q$" Iwasawa theory in two different settings. Let $K$ be an imaginary quadratic field of class number 1 such that both $p$ and $q$ split in $K$. We show that under appropriate…

Number Theory · Mathematics 2023-02-28 Debanjana Kundu , Antonio Lei

We study a geometric analogue of the Iwasawa Main Conjecture for constant ordinary abelian varieties over $\ZZ_p^d$-extensions of function fields ramifying at a finite set of places.

Number Theory · Mathematics 2017-05-17 King Fai Lai , Ignazio Longhi , Ki-Seng Tan , Fabien Trihan

Let $K_\infty/K$ be a uniform $p$-adic Lie extension. We compare several arithmetic invariants of Iwasawa modules of ideal class groups on the one side and fine Selmer groups of abelian varieties on the other side. If $K_\infty$ contains…

Number Theory · Mathematics 2024-09-24 Sören Kleine , Katharina Müller

Kurihara established a refinement of the minus-part of the Iwasawa main conjecture for totally real number fields using the higher Fitting ideals. In this paper, we study the higher Fitting ideals of the plus-part of the Iwasawa module…

Number Theory · Mathematics 2010-05-24 Tatsuya Ohshita
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