Takeishi Takuya 武石拓也

Researcher Number	20784490
Other IDs
Affiliation (Current)	2025: 京都工芸繊維大学, 基盤科学系, 准教授
Affiliation (based on the past Project Information) *help	2023 – 2024: 京都工芸繊維大学, 基盤科学系, 准教授 2018 – 2022: 京都工芸繊維大学, 基盤科学系, 助教 2017: 京都大学, 数理解析研究所, 研究員
Review Section/Research Field	Principal Investigator Basic Section 12010:Basic analysis-related / Basic analysis
Keywords	Principal Investigator KMS状態 / K-理論 / 作用素環論 / C-環 / 代数体 / C-環論 / グラフC-環 / 亜群ホモロジー / 亜群C-環 / 代数学 … More / 解析学 / C*-環の分類 / 非可換幾何学 / Bost--Connes系 Less

Research Projects
(3 results)
Research Products
(21 results)

Study of operator algebras constructed from number fields and associated invariantsPrincipal Investigator
- Principal Investigator
  
  武石拓也
- Project Period (FY)
  2024 – 2026
- Research Category
  
  Grant-in-Aid for Scientific Research (C)
- Review Section
  
  Basic Section 12010:Basic analysis-related
- Research Institution
  Kyoto Institute of Technology
Investigation of operator algebras associated to number fieldsPrincipal Investigator
- Principal Investigator
  
  Takeishi Takuya
- Project Period (FY)
  2019 – 2023
- Research Category
  
  Grant-in-Aid for Early-Career Scientists
- Review Section
  
  Basic Section 12010:Basic analysis-related
- Research Institution
  Kyoto Institute of Technology
On the classification problem of Bost-Connes systemsPrincipal Investigator
- Principal Investigator
  
  Takeishi Takuya
- Project Period (FY)
  2017 – 2018
- Research Category
  
  Grant-in-Aid for Research Activity Start-up
- Research Field
  
  Basic analysis
- Research Institution
  Kyoto Institute of Technology
  Kyoto University

All 2024 2023 2022 2021 2020 2019 2018 2017

All Journal Article Presentation

[Journal Article] Constructing Number Field Isomorphisms from *-Isomorphisms of Certain Crossed Product C*-Algebras2024
- Author(s)
  Bruce Chris、Takeishi Takuya
- Journal Title
  
  Communications in Mathematical Physics
  
  Volume: 405 Issue: 1
- DOI
  10.1007/s00220-023-04927-y
- Peer Reviewed / Open Access / Int'l Joint Research
- Data Source
  KAKENHI-PROJECT-19K14551
[Journal Article] Limits of KMS states on Toeplitz algebras of finite graphs2022
- Author(s)
  T. Takeishi
- Journal Title
  
  J. Operator Theory
  
  Volume: to appear
- Peer Reviewed
- Data Source
  KAKENHI-PROJECT-19K14551
[Journal Article] C*-dynamical invariants and Toeplitz algebras of graphs2022
- Author(s)
  C. Bruce and T. Takeishi
- Journal Title
  
  J. Operator Theory
  
  Volume: to appear
- Peer Reviewed / Int'l Joint Research
- Data Source
  KAKENHI-PROJECT-19K14551
[Journal Article] Partition Functions as C*-Dynamical Invariants and Actions of Congruence Monoids2020
- Author(s)
  Bruce Chris、Laca Marcelo、Takeishi Takuya
- Journal Title
  
  Communications in Mathematical Physics
  
  Volume: 382 Issue: 2 Pages: 1165-1203
- DOI
  10.1007/s00220-020-03859-1
- Peer Reviewed / Int'l Joint Research
- Data Source
  KAKENHI-PROJECT-19K14551
[Journal Article] Reconstructing the Bost--Connes semigroup actions from K-theory2020
- Author(s)
  Kubota Yosuke, Takeishi Takuya
- Journal Title
  
  Advances in Mathematics
  
  Volume: 366 Pages: 107070-107070
- DOI
  10.1016/j.aim.2020.107070
- Peer Reviewed
- Data Source
  KAKENHI-PROJECT-19K14551, KAKENHI-PROJECT-19K14544
[Journal Article] Reconstructing the Bost--Connes semigroup actions from K-theory2017
- Author(s)
  Y. Kubota and T. Takeishi
- Journal Title
  
  arXiv:1709.03281
  
  Volume: -
- Peer Reviewed
- Data Source
  KAKENHI-PROJECT-17H06785
[Presentation] 代数体から構成されるC*-環と関連する代数体の完全不変量について2024
- Author(s)
  武石拓也
- Organizer
  2024年度日本数学会年会
- Invited
- Data Source
  KAKENHI-PROJECT-19K14551
[Presentation] Rigidity theorems of C*-algebras arising from number theory2023
- Author(s)
  武石拓也
- Organizer
  Low dimensional topology and number theory XIV
- Invited / Int'l Joint Research
- Data Source
  KAKENHI-PROJECT-19K14551
[Presentation] Rigidity theorems of certain classes of C*-algebras from number theory I-III（3回連続講演）2023
- Author(s)
  武石拓也
- Organizer
  作用素環論における群作用と数理物理の関連
- Invited
- Data Source
  KAKENHI-PROJECT-19K14551
[Presentation] Constructing number field isomorphisms from *-isomorphisms of certain crossed product C*-algebras2022
- Author(s)
  C.Bruce, 武石拓也
- Organizer
  2022年度日本数学会秋季総合分科会
- Data Source
  KAKENHI-PROJECT-19K14551
[Presentation] KMS states of Toeplitz algebras of graphs2021
- Author(s)
  武石拓也
- Organizer
  第60回実函数論・函数解析学合同シンポジウム
- Invited
- Data Source
  KAKENHI-PROJECT-19K14551
[Presentation] Partition functions as C*-dynamical invariants and actions of congruence monoids2021
- Author(s)
  武石拓也
- Organizer
  作用素環と量子力学系(RIMS)
- Invited
- Data Source
  KAKENHI-PROJECT-19K14551
[Presentation] Partition functions as C*-dynamical invariants and actions of congruence monoids2020
- Author(s)
  武石拓也
- Organizer
  作用素環の分類理論における新展開(RIMS)
- Invited
- Data Source
  KAKENHI-PROJECT-19K14551
[Presentation] Partition functions as C*-dynamical invariants and actions of congruence monoids2020
- Author(s)
  武石拓也，C.Bruce，M.Laca
- Organizer
  日本数学会年会2020
- Data Source
  KAKENHI-PROJECT-19K14551
[Presentation] Partition functions as C*-dynamical invariants and actions of congruence monoids2020
- Author(s)
  武石拓也
- Organizer
  CMS Winter Meeting 2020
- Invited / Int'l Joint Research
- Data Source
  KAKENHI-PROJECT-19K14551
[Presentation] Operator Algebras and Number Theory, Conference of Functional Analysis2020
- Author(s)
  武石拓也
- Organizer
  関数解析研究会
- Invited
- Data Source
  KAKENHI-PROJECT-19K14551
[Presentation] Reconstructing the Bost-Connes semigroup actions from K-theory2019
- Author(s)
  武石拓也
- Organizer
  Young mathematicians workshop on algebraic, geometric, and analytic aspects of K theory and vector bundles
- Invited
- Data Source
  KAKENHI-PROJECT-19K14551
[Presentation] Reconstructing the Bost-Connes semigroup actions from K-theory2018
- Author(s)
  Yosuke Kubota, Takuya Takeishi
- Organizer
  作用素論・作用素環論研究集会2018
- Invited
- Data Source
  KAKENHI-PROJECT-17H06785
[Presentation] Reconstructing the Bost-Connes semigroup actions from K-theory2018
- Author(s)
  武石　拓也
- Organizer
  Mathematical study on topological phases, RIMS, Kyoto, Japan
- Invited
- Data Source
  KAKENHI-PROJECT-17H06785
[Presentation] Reconstructing the Bost-Connes semigroup actions from K-theory2018
- Author(s)
  武石　拓也
- Organizer
  MSJ Spring Meeting 2018, Tokyo, Japan
- Data Source
  KAKENHI-PROJECT-17H06785
[Presentation] Reconstructing the Bost-Connes semigroup actions from K-theory2017
- Author(s)
  T. Takeishi
- Organizer
  Facets of Irreversibility: Inverse Semigroups, Groupoids, and Operator Algebras, Oslo, Norway
- Int'l Joint Research
- Data Source
  KAKENHI-PROJECT-17H06785

Takeishi Takuya 武石 拓也

Research Projects

Research Products

Study of operator algebras constructed from number fields and associated invariantsPrincipal Investigator

Principal Investigator

Project Period (FY)

Research Category

Review Section

Research Institution

Investigation of operator algebras associated to number fieldsPrincipal Investigator

Principal Investigator

Project Period (FY)

Research Category

Review Section

Research Institution

On the classification problem of Bost-Connes systemsPrincipal Investigator

Principal Investigator

Project Period (FY)

Research Category

Research Field

Research Institution

[Journal Article] Constructing Number Field Isomorphisms from *-Isomorphisms of Certain Crossed Product C*-Algebras2024

Author(s)

Journal Title

DOI

Data Source

[Journal Article] Limits of KMS states on Toeplitz algebras of finite graphs2022

Author(s)

Journal Title

Data Source

[Journal Article] C*-dynamical invariants and Toeplitz algebras of graphs2022

Author(s)

Journal Title

Data Source

[Journal Article] Partition Functions as C*-Dynamical Invariants and Actions of Congruence Monoids2020

Author(s)

Journal Title

DOI

Data Source

[Journal Article] Reconstructing the Bost--Connes semigroup actions from K-theory2020

Author(s)

Journal Title

DOI

Data Source

[Journal Article] Reconstructing the Bost--Connes semigroup actions from K-theory2017

Author(s)

Journal Title

Data Source

[Presentation] 代数体から構成されるC*-環と関連する代数体の完 全不変量について2024

Author(s)

Organizer

Data Source

[Presentation] Rigidity theorems of C*-algebras arising from number theory2023

Author(s)

Organizer

Data Source

[Presentation] Rigidity theorems of certain classes of C*-algebras from number theory I-III（3回連続講演）2023

Author(s)

Organizer

Data Source

[Presentation] Constructing number field isomorphisms from *-isomorphisms of certain crossed product C*-algebras2022

Author(s)

Organizer

Data Source

[Presentation] KMS states of Toeplitz algebras of graphs2021

Author(s)

Organizer

Data Source

[Presentation] Partition functions as C*-dynamical invariants and actions of congruence monoids2021

Author(s)

Organizer

Data Source

[Presentation] Partition functions as C*-dynamical invariants and actions of congruence monoids2020

Author(s)

Organizer

Data Source

[Presentation] Partition functions as C*-dynamical invariants and actions of congruence monoids2020

Author(s)

Organizer

Data Source

Takeishi Takuya 武石拓也

[Journal Article] Constructing Number Field Isomorphisms from -Isomorphisms of Certain Crossed Product C-Algebras2024

[Presentation] 代数体から構成されるC*-環と関連する代数体の完全不変量について2024

[Presentation] Constructing number field isomorphisms from -isomorphisms of certain crossed product C-algebras2022