activity
20142023
most citedOn the theory of higher rank Euler, Kolyvagin and Stark systems, II

21 citations · 52 across the 20 of their papers we have counts for

collaborators

20 papers

math.NT2023

Derived Bockstein regulators and anticyclotomic -adic Birch and Swinnerton-Dyer conjectures

Takamichi Sano

We introduce "derived Bockstein regulators" by using an idea of Nekovář. We establish a general descent formalism involving derived Bockstein regulators. We give three applications…

math.NT2022

On non-commutative Iwasawa theory and derivatives of Euler systems

David Burns, Takamichi Sano

We use the theory of reduced determinant functors from [24] to give a new, computationally useful, description of the relative -groups of orders in finite dimensional separabl…

math.NT2022

On Euler systems for motives and Heegner points

Takenori Kataoka, Takamichi Sano

We formulate an Iwasawa main conjecture for a higher rank Euler system for a general motive. We prove "one half" of the main conjecture under mild hypotheses. We also formulate a c…

math.NT2021

On -adic families of special elements for rank-one motives

Dominik Bullach, David Burns, Takamichi Sano

We conjecture that special elements associated with rank-one motives are obtained -adically from Rubin-Stark elements by means of a precise `higher-rank Soulé twist' constructio…

math.NT2021

On derivatives of Kato's Euler system and the Mazur-Tate Conjecture

David Burns, Masato Kurihara, Takamichi Sano

We provide a new interpretation of the Mazur-Tate Conjecture and then use it to obtain the first (unconditional) theoretical evidence in support of the conjecture for elliptic curv…

math.NT2020★ 2 cited

On non-commutative Euler systems, I: preliminaries on `det' and `Fit'

David Burns, Takamichi Sano

We extend some classical constructions in commutative algebra to the setting of modules over orders in (non-commutative) semisimple algebras. Our theory incorporates, inter alia, `…

math.NT2020

On functional equations of Euler systems

David Burns, Takamichi Sano

We establish precise relations between Euler systems that are respectively associated to a -adic representation and to its Kummer dual . Upon appropriate specializat…

math.NT2019★ 3 cited

On derivatives of Kato's Euler system for elliptic curves

David Burns, Masato Kurihara, Takamichi Sano

In this paper we study a new conjecture concerning Kato's Euler system of zeta elements for elliptic curves over . This conjecture, which we refer to as the `Genera…

math.NT2019★ 3 cited

On Euler systems for the multiplicative group over general number fields

David Burns, Alexandre Daoud, Takamichi Sano +1

We formulate, and provide strong evidence for, a natural generalization of a conjecture of Robert Coleman concerning Euler systems for the multiplicative group over arbitrary numbe…

math.NT2019★ 3 cited

On the theory of higher rank Euler, Kolyvagin and Stark systems, IV: the multiplicative group

David Burns, Ryotaro Sakamoto, Takamichi Sano

We describe a refinement of the general theory of higher rank Euler, Kolyvagin and Stark systems in the setting of the multiplicative group over arbitrary number fields. We use the…

math.NT2019★ 11 cited

On the theory of higher rank Euler, Kolyvagin and Stark systems, III: applications

David Burns, Ryotaro Sakamoto, Takamichi Sano

In an earlier article we proved the existence of a canonical Kolyvagin derivative homomorphism between the modules of Euler and Kolyvagin systems (in any given rank) that are assoc…

math.NT2018★ 3 cited

On higher special elements of -adic representations

David Burns, Takamichi Sano, Kwok-Wing Tsoi

As a natural generalization of the notion of `higher rank Euler system', we develop a theory of `higher special elements' in the exterior power biduals of the Galois cohomology of…

math.NT2018★ 21 cited

On the theory of higher rank Euler, Kolyvagin and Stark systems, II

David Burns, Ryotaro Sakamoto, Takamichi Sano

We prove the existence of a canonical `higher Kolyvagin derivative' homomorphism between the modules of higher rank Euler systems and higher rank Kolyvagin systems, as has been con…

math.NT2016★ 1 cited

On the theory of higher rank Euler, Kolyvagin and Stark systems

David Burns, Takamichi Sano

Mazur and Rubin have recently developed a theory of higher rank Kolyvagin and Stark systems over principal artinian rings and discrete valuation rings. In this article we describe…

math.NT2016

On Stark elements of arbitrary weight and their -adic families

David Burns, Masato Kurihara, Takamichi Sano

We develop a detailed arithmetic theory related to special values at arbitrary integers of the Artin -series of linear characters. To do so we define canonical generalized Stark…

math.NT2015

Iwasawa theory and zeta elements for

David Burns, Masato Kurihara, Takamichi Sano

We describe an explicit `higher rank' Iwasawa theory for zeta elements associated to the multiplicative group over abelian extensions of general number fields. We then show that th…

math.NT2014

On zeta elements for

David Burns, Masato Kurihara, Takamichi Sano

In this paper, we present a unifying approach to the general theory of abelian Stark conjectures. To do so we define natural notions of `zeta element', of `Weil-étale cohomology co…

math.NT2014★ 1 cited

On a conjecture for Rubin-Stark elements in a special case

Takamichi Sano

We prove a conjecture on Rubin-Stark elements, which was recently proposed by the author, and also by Mazur and Rubin, in a special case.

math.NT2014★ 4 cited

Refined abelian Stark conjectures and the equivariant leading term conjecture of Burns

Takamichi Sano

We formulate a conjecture which generalizes Darmon's "refined class number formula". We discuss relations between our conjecture and the equivariant leading term conjecture of Burn…

math.NT2014

A generalization of Darmon's conjecture for Euler systems for general p-adic representations

Takamichi Sano

Darmon's conjecture on a relation between cyclotomic units over real quadratic fields and certain algebraic regulators was recently solved by Mazur and Rubin by using their theory…