TOYOKAWA Hisayoshi 豊川永喜

… Alternative Names

Toyokawa Hisayoshi 豊川永喜

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Researcher Number	30907762
Other IDs
Affiliation (Current)	2025: 北見工業大学, 工学部, 助教
Affiliation (based on the past Project Information) *help	2021 – 2024: 北見工業大学, 工学部, 助教 2021 – 2023: 九州大学, マス・フォア・インダストリ研究所, 助教
Review Section/Research Field	Principal Investigator Basic Section 12020:Mathematical analysis-related / 0201:Algebra, geometry, analysis, applied mathematics,and related fields Except Principal Investigator Medium-sized Section 12:Analysis, applied mathematics, and related fields
Keywords	Principal Investigator 無限測度混合性 / 無限測度エルゴード理論 / ランダム力学系 / 混合性 / 漸近緊縮性 / 散逸系 / リャプノフ指数 / 物理的ノイズ / 区分凸ランダム写像 / 無限不変測度 … More / 不変測度 / エルゴード性 / マルコフ作用素コサイクル / マルコフ作用素 / 物理的測度 / 絶対連続不変測度 … More Except Principal Investigator 雑音誘起現象 / 情報系分解 / 一般化逆正弦法則 / 確率過程論 / ランダム力学系 Less

Mixing invariant measures for random dynamical systems and analysis of infinite mixingPrincipal Investigator
- Principal Investigator
  
  豊川永喜
- Project Period (FY)
  2024 – 2028
- Research Category
  
  Grant-in-Aid for Early-Career Scientists
- Review Section
  
  Basic Section 12020:Mathematical analysis-related
- Research Institution
  Kitami Institute of Technology
Construction of infinite invariant measures for dissipative random dynamical systems and application to infinite mixingPrincipal Investigator
- Principal Investigator
  
  Toyokawa Hisayoshi
- Project Period (FY)
  2021 – 2023
- Research Category
  
  Grant-in-Aid for Research Activity Start-up
- Review Section
  
  0201:Algebra, geometry, analysis, applied mathematics,and related fields
- Research Institution
  Kitami Institute of Technology
Theoretical study of random dynamical systems through the approach of stochastic processes
- Principal Investigator
  
  Yano Kouji
- Project Period (FY)
  2019 – 2023
- Research Category
  
  Grant-in-Aid for Challenging Research (Exploratory)
- Review Section
  
  Medium-sized Section 12:Analysis, applied mathematics, and related fields
- Research Institution
  Osaka University
  Kyoto University

All 2024 2023 2022 2021

All Journal Article Presentation

[Journal Article] Finitude of physical measures for random maps2024
- Author(s)
  Pablo G.Barrientos, Fumihiko Nakamura, Yushi Nakano, Hisayoshi Toyokawa
- Journal Title
  
  Asterisque
  
  Volume: －
- Peer Reviewed / Int'l Joint Research
- Data Source
  KAKENHI-PROJECT-21K20330
[Journal Article] Invariant measures for random piecewise convex maps2024
- Author(s)
  Inoue Tomoki、Toyokawa Hisayoshi
- Journal Title
  
  Nonlinearity
  
  Volume: 37 Issue: 5 Pages: 055016-055016
- DOI
  10.1088/1361-6544/ad2ff9
- Peer Reviewed
- Data Source
  KAKENHI-PROJECT-21K20330
[Journal Article] Arcsine law for random dynamics with a core2023
- Author(s)
  Nakamura Fumihiko、Nakano Yushi、Toyokawa Hisayoshi、Yano Kouji
- Journal Title
  
  Nonlinearity
  
  Volume: 36 Issue: 3 Pages: 1491-1509
- DOI
  10.1088/1361-6544/acb398
- Peer Reviewed / Open Access
- Data Source
  KAKENHI-PROJECT-19K21834, KAKENHI-PROJECT-19K14575, KAKENHI-PROJECT-21K20330, KAKENHI-PROJECT-19H01791, KAKENHI-PROJECT-23K20814, KAKENHI-PROJECT-23K25785
[Journal Article] Random invariant densities for Markov operator cocycles and random mean ergodic theorem2023
- Author(s)
  F Nakamura, H Toyokawa
- Journal Title
  
  Stochastics and Dynamics
  
  Volume: －
- Peer Reviewed / Open Access
- Data Source
  KAKENHI-PROJECT-19K21834
[Journal Article] Random invariant densities for Markov operator cocycles and random mean ergodic theorem2023
- Author(s)
  Nakamura Fumihiko、Toyokawa Hisayoshi
- Journal Title
  
  Stochastics and Dynamics
  
  Volume: -
- Peer Reviewed
- Data Source
  KAKENHI-PROJECT-21K20330
[Journal Article] Lyapunov exponents for random maps2022
- Author(s)
  Nakamura Fumihiko、Nakano Yushi、Toyokawa Hisayoshi
- Journal Title
  
  Discrete and Continuous Dynamical Systems Series B
  
  Volume: -
- Peer Reviewed
- Data Source
  KAKENHI-PROJECT-21K20330
[Journal Article] Lyapunov exponents for random maps2022
- Author(s)
  Nakamura Fumihiko、Nakano Yushi、Toyokawa Hisayoshi
- Journal Title
  
  Discrete & Continuous Dynamical Systems - B
  
  Volume: 0 Issue: 12 Pages: 0-0
- DOI
  10.3934/dcdsb.2022058
- Peer Reviewed
- Data Source
  KAKENHI-PROJECT-19K21834, KAKENHI-PROJECT-19K14575
[Journal Article] Mixing and observation for Markov operator cocycles*2021
- Author(s)
  Nakamura Fumihiko、Nakano Yushi、Toyokawa Hisayoshi
- Journal Title
  
  Nonlinearity
  
  Volume: 35 Issue: 1 Pages: 66-83
- DOI
  10.1088/1361-6544/ac355f
- Peer Reviewed
- Data Source
  KAKENHI-PROJECT-19K21834, KAKENHI-PROJECT-19K14575, KAKENHI-PROJECT-21K20330
[Journal Article] On the existence of absolutely continuous σ-finite invariant measures for random dynamical systems2021
- Author(s)
  Hisayoshi Toyokawa
- Journal Title
  
  Research on the Theory of Random Dynamical Systems and Fractal Geometry, RIMS Kokyuroku
  
  Volume: 2176
- NAID
  120007141888
- Open Access
- Data Source
  KAKENHI-PROJECT-19K21834
[Journal Article] σ-finite acims for weakly expanding random maps with uniformly contractive branches2021
- Author(s)
  Hisayoshi Toyokawa
- Journal Title
  
  Problems on mathematical science and new development in the theory of dynamical systems, RIMS Kokyuroku
  
  Volume: 2181
- NAID
  120007141824
- Open Access
- Data Source
  KAKENHI-PROJECT-19K21834
[Presentation] Infinite invariant measures for random maps and their ergodic properties2023
- Author(s)
  豊川永喜
- Organizer
  21世紀の複雑系研究集会 (津田先生古希記念研究集会)
- Invited
- Data Source
  KAKENHI-PROJECT-21K20330
[Presentation] Finitude of ergodic σ-finite invariant measures for Markov operators2023
- Author(s)
  Toyokawa Hisayoshi
- Organizer
  International Workshop on Ergodic Theory, Dynamical Systems, and Climate Sciences
- Invited / Int'l Joint Research
- Data Source
  KAKENHI-PROJECT-21K20330
[Presentation] Finitude of physical measures for random maps2023
- Author(s)
  Toyokawa, Hisayoshi
- Organizer
  The 43rd Conference on Stochastic Processes and their Applications, Contributed Session Recent progresses on random dynamical systems
- Int'l Joint Research
- Data Source
  KAKENHI-PROJECT-21K20330
[Presentation] Ergodic sigma-finite invariant measures for random maps with uniformly contractive part2023
- Author(s)
  豊川永喜
- Organizer
  エルゴード理論研究集会
- Data Source
  KAKENHI-PROJECT-21K20330
[Presentation] Finitude of ergodic σ-finite invariant measures for Markov operators2022
- Author(s)
  Toyokawa Hisayoshi
- Organizer
  Recent Progress in Ergodic Theory
- Invited / Int'l Joint Research
- Data Source
  KAKENHI-PROJECT-21K20330
[Presentation] Mean constrictivity and ergodic σ-finite invariant measures for Markov operators2022
- Author(s)
  豊川永喜
- Organizer
  エルゴード理論研究集会
- Data Source
  KAKENHI-PROJECT-21K20330
[Presentation] Absolutely continuous σ-finite invariant measures for weakly expanding random maps with a flat point2021
- Author(s)
  豊川永喜
- Organizer
  北海道力学系 web セミナー
- Invited
- Data Source
  KAKENHI-PROJECT-19K21834
[Presentation] Invariant measures for random piecewise convex maps with indifferent fixed points2021
- Author(s)
  豊川永喜
- Organizer
  ランダム力学系および多価写像力学系理論の総合的研究
- Invited
- Data Source
  KAKENHI-PROJECT-19K21834
[Presentation] Invariant measures for random piecewise convex maps with the common indifferent fixed point2021
- Author(s)
  Hisayoshi Toyokawa
- Organizer
  Quantitative aspects in complex analysis, geometry and dynamics, Lille University
- Int'l Joint Research
- Data Source
  KAKENHI-PROJECT-19K21834
[Presentation] σ-finite invariant measures for Markov operators and the ratio sets for non-invertible transformations2021
- Author(s)
  豊川永喜
- Organizer
  ワークショップ「作用素環と力学系」
- Invited
- Data Source
  KAKENHI-PROJECT-21K20330
[Presentation] マルコフ作用素に対する不変測度の存在と一次元ランダム力学系への応用2021
- Author(s)
  豊川永喜
- Organizer
  確率論研究会
- Invited
- Data Source
  KAKENHI-PROJECT-19K21834
[Presentation] σ-finite invariant measures for Markov operators and the ratio sets for non-invertible transformations2021
- Author(s)
  豊川永喜
- Organizer
  ワークショップ「作用素環と力学系」
- Invited
- Data Source
  KAKENHI-PROJECT-19K21834
[Presentation] マルコフ作用素に対する不変測度の存在と一次元ランダム力学系への応用2021
- Author(s)
  豊川永喜
- Organizer
  確率論研究会
- Invited
- Data Source
  KAKENHI-PROJECT-21K20330
[Presentation] Invariant measures for random piecewise convex maps with the common indifferent fixed point2021
- Author(s)
  Toyokawa Hisayoshi
- Organizer
  Quantitative aspects in complex analysis, geometry and dynamics
- Int'l Joint Research
- Data Source
  KAKENHI-PROJECT-21K20330

1. Yano Kouji (80467646)

# of Collaborated Projects: 1 results

# of Collaborated Products: 1 results
2. 佐藤譲 (30342794)

# of Collaborated Projects: 1 results

# of Collaborated Products: 0 results
3. 角大輝 (40313324)

# of Collaborated Projects: 1 results

# of Collaborated Products: 0 results
4. 中野雄史 (50778313)

# of Collaborated Projects: 1 results

# of Collaborated Products: 3 results
5. 中村文彦 (40825147)

# of Collaborated Projects: 1 results

# of Collaborated Products: 4 results

TOYOKAWA Hisayoshi 豊川 永喜

Toyokawa Hisayoshi 豊川 永喜

Research Projects

Research Products

Co-Researchers

Mixing invariant measures for random dynamical systems and analysis of infinite mixingPrincipal Investigator

Principal Investigator

Project Period (FY)

Research Category

Review Section

Research Institution

Construction of infinite invariant measures for dissipative random dynamical systems and application to infinite mixingPrincipal Investigator

Principal Investigator

Project Period (FY)

Research Category

Review Section

Research Institution

Theoretical study of random dynamical systems through the approach of stochastic processes

Principal Investigator

Project Period (FY)

Research Category

Review Section

Research Institution

[Journal Article] Finitude of physical measures for random maps2024

Author(s)

Journal Title

Data Source

[Journal Article] Invariant measures for random piecewise convex maps2024

Author(s)

Journal Title

DOI

Data Source

[Journal Article] Arcsine law for random dynamics with a core2023

Author(s)

Journal Title

DOI

Data Source

[Journal Article] Random invariant densities for Markov operator cocycles and random mean ergodic theorem2023

Author(s)

Journal Title

Data Source

[Journal Article] Random invariant densities for Markov operator cocycles and random mean ergodic theorem2023

Author(s)

Journal Title

Data Source

[Journal Article] Lyapunov exponents for random maps2022

Author(s)

Journal Title

Data Source

[Journal Article] Lyapunov exponents for random maps2022

Author(s)

Journal Title

DOI

Data Source

[Journal Article] Mixing and observation for Markov operator cocycles*2021

Author(s)

Journal Title

DOI

Data Source

[Journal Article] On the existence of absolutely continuous σ-finite invariant measures for random dynamical systems2021

Author(s)

Journal Title

NAID

Data Source

[Journal Article] σ-finite acims for weakly expanding random maps with uniformly contractive branches2021

Author(s)

Journal Title

NAID

Data Source

[Presentation] Infinite invariant measures for random maps and their ergodic properties2023

Author(s)

Organizer

Data Source

[Presentation] Finitude of ergodic σ-finite invariant measures for Markov operators2023

Author(s)

Organizer

Data Source

[Presentation] Finitude of physical measures for random maps2023

Author(s)

Organizer

TOYOKAWA Hisayoshi 豊川永喜

Toyokawa Hisayoshi 豊川永喜

[Presentation] マルコフ作用素に対する不変測度の存在と一次元ランダム力学系への応用2021

[Presentation] マルコフ作用素に対する不変測度の存在と一次元ランダム力学系への応用2021