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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 consider $\mathbb{Z}_p^{\mathbb{N}}$-extensions $\mathcal{F}$ of a global function field $F$ and study various aspects of Iwasawa theory with emphasis on the two main themes already (and still) developed in the number fields case as…

Number Theory · Mathematics 2015-05-05 Andrea Bandini , Francesc Bars , Ignazio Longhi

We establish the Iwasawa main conjecture for semi-stable abelian varieties over a function field of characteristic $p$ under certain restrictive assumptions. Namely we consider $p$-torsion free $p$-adic Lie extensions of the base field…

Number Theory · Mathematics 2019-01-11 David Vauclair , Fabien Trihan

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

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

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

In this paper the new techniques and results concerning the structure theory of modules over non-commutative Iwasawa algebras are applied to arithmetic: we study Iwasawa modules over p-adic Lie extensions K of number fields k "up to…

Number Theory · Mathematics 2007-05-23 Otmar Venjakob

This note shows how to use the framework of Euler characteristic formulae to study Selmer groups of abelian varieties in certain dihedral or anticyclotomic extensions of CM fields via Iwasawa main conjectures, and in particular how to…

Number Theory · Mathematics 2021-11-16 Jeanine Van Order

Let $p$ be an odd prime. Let $f_1$ and $f_2$ be weight-two Hecke eigen-cuspforms with isomorphic residual Galois representations at $p$. Greenberg--Vatsal and Emerton--Pollack--Weston showed that if $p$ is a good ordinary prime for the two…

Number Theory · Mathematics 2023-08-25 Antonio Lei , Katharina Müller , Jiacheng Xia

Let $p\ge 5$ be a prime number, $E/\mathbb{Q}$ an elliptic curve with good supersingular reduction at $p$ and $K$ an imaginary quadratic field such that the root number of $E$ over $K$ is $+1$. When $p$ is split in $K$, Darmon and Iovita…

Number Theory · Mathematics 2023-12-27 Ashay Burungale , Kâzım Büyükboduk , Antonio Lei

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

In this note, we compare the dual Selmer groups of an abelian variety with that of its dual over certain large Galois field. We give formula which relates the generalized Iwasawa $\mu$-invariants associated with their dual Selmer groups…

Number Theory · Mathematics 2013-05-16 Amala Bhave

Let $p$ be an odd prime and let $E$ be an elliptic curve defined over a number field $F$ with good reduction at primes above $p$. In this survey article, we give an overview of some of the important results proven for the fine Selmer group…

Number Theory · Mathematics 2022-06-09 Parham Hamidi , Jishnu Ray

The main conjecture of Iwasawa theory is a conjecture on the relation between a Selmer group and a conjectural $p$-adic $L$-function. This conjectural $p$-adic $L$-function is expected to satisfy a conjectural functional equation in a…

Number Theory · Mathematics 2015-12-16 Meng Fai Lim

We give several formulas for how Iwasawa $\mu$-invariants of abelian varieties over unramified $\mathbb{Z}_{p}$-extensions of function fields change under isogeny. These are analogues of Schneider's formula in the number field setting. We…

Number Theory · Mathematics 2025-01-23 Sohan Ghosh , Jishnu Ray , Takashi Suzuki

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

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

In this note, we investigate the p-adic behavior of Weil numbers in the cyclotomic $\mathbb Z\_p$-extension of $\mathbb Q(\zeta\_p).$ We determlne the characteristic ideal of the quotient of semi-local units by Weil numbers in terms of the…

Number Theory · Mathematics 2007-05-23 Bruno Angles , Tatiana Beliaeva

We deduce the cyclotomic Iwasawa main conjecture for Hilbert modular cuspforms with complex multiplication from the multivariable main conjecture for CM number fields. To this end, we study in detail the behaviour of the $p$-adic…

Number Theory · Mathematics 2018-04-02 Takashi Hara , Tadashi Ochiai

We study the average behaviour of the Iwasawa invariants for Selmer groups of elliptic curves, considered over anticyclotomic $\mathbb{Z}_p$-extensions in both the definite and indefinite settings. The results in this paper lie at the…

Number Theory · Mathematics 2024-06-18 Jeffrey Hatley , Debanjana Kundu , Anwesh Ray
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