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J-GLOBAL ID：200901043255511296 Update date: Mar. 29, 2025

Iwata Yoritaka

イワタヨリタカ | Iwata Yoritaka

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Affiliation and department：
Job title： Associate Professor
Other affiliations (1)：

OUEL Media Lab Advisor

Homepage URL (1)： https://www.researchgate.net/profile/Yoritaka_Iwata

Research field (2)： Theoretical studies related to particle-, nuclear-, cosmic ray and astro-physics , Mathematical analysis

Research keywords (11)： nonlinear mathematical science , mathematical information science , high precision computation , mathematical physics , Operator Theory (Operator algebra) , Theory of semigroups , Theory of abstract evolution equation , Double-beta decay , Soliton , Neutrino , Functional analysis

Research theme for competitive and other funds (26)：

2024 - 2025 FY2024 Budjet for having an international workshop "NMW2025"
2023 - 2025 FY2023 Cluster Formation: Application of theory of Besov spaces for economics (PI Yoshihiro Sawano)
2022 - 2023 2022年度研究助成金 "脳科学のための数理モデル開発"(代表岩田順敬)
2021 - 2022 2021年度研究資金 "Effect of higher fissioning nuclei on spectral anomaly of reactor antineutrinos"(千葉敏、石塚知香子、岩田順敬、他4名)
2021 - 2022 2021年度計算資源 HPCIシステム利用研究課題 "Search for nuclei of neutrinoless double-beta decay suitable to quasiparticle random-phase approximation" (寺崎順、岩田順敬)

2020 - 2021 2020年度研究資金 "Studies of resonant reaction in nuclear astrophysics and alpha cluster structure"(伊藤誠、山口英斉、岩田順敬、Pierre Descouvemont, Kevin Insik Hahn 他数名)

2020 - 2021 2020年度計算資源 HPCIシステム利用研究課題 "ニュートリノレス二重ベータ崩壊原子核行列要素計算の近似の正当性" (寺崎順、岩田順敬)

2019 - 2020 FY2019 Scientific budjet "Neutrinoless double-β decay for determination of neutrino mass" (Y. Iwata, J. Terasaki)

2019 - 2020 FY2019 computational resorce Multidisciplinary Cooperative Research Program 2019 [CCS, University of Tsukuba] "Improvement of reliability of nuclear matrix element of neutrinoless double-β decay" ([P.I.] Y. Iwata, Jun Terasaki)

2019 - 2020 FY2019 Computational resorce by HPCI

2017 - 2020 Naoyuki Itagaki (P.I.), Akihiro Tohsaki, Yoritaka Iwata

2018 - 2019 FY2018 Computational resorce by supercomputer K

2018 - 2019 FY2018 Research for economic large-data analysis

2018 - 2019 Computational Resorce, "Systematic study of nuclear fission of actinides using multi-dimensional Langevin models", Center for Compt. Sci., Univ. Tsukuba (C. Ishizuka et al.)

2018 - 2019 Computational Resorce, "Calculation of nuclear matrix elements of neutrinoless double-beta decay using QRPA", Center for Compt. Sci., Univ. Tsukuba (Y.Iwata, J. Terasaki)

2017 - 2018 2017年度計算資源 B期スーパーコンピュータ「京」利用研究課題 ”ニュートリノレス二重ベータ崩壊の原子核行列要素” (岩田順敬、寺崎順)

2017 - 2018 2017年度計算資源二重ベータ崩壊の核行列要素の計算比較、筑波大学計算科学研究センター・学際共同利用重点課題(岩田順敬、寺崎順)

2016 - 2017 FY2016 Inter-University Research Project, supported by Tokyo Institute of Technology: ”Effect of rotational motion on fission dynamics based on Cranked Hartree-Fock theory”, S, Chiba, Y. Iwata and N. Itagaki

2016 - 2017 FY2016 Computational Resorce "Precise calculations for double beta decay matrix elements", Center for Compt. Sci., Univ. Tsukuba (Y.Iwata, N. Shimizu, Y. Utsuno, T. Abe, T. Otsuka, T. Togashi, T. Yoshida, T. Miyagi, Y. Tsunoda, S. Yoshida)

2015 - 2016 FY2015 Argonne Leadership Computing Facility United States, Director's Discretionary Resource (P.I. Y. Iwata; Y. Iwata, N. Shimizu, T. Otsuka, Y. Utsuno, J. Menendez, M. Honma, T. Abe) 200,000 CPU hours

2015 - 2016 FY2015 Computational Resorce "Large-scale shell-model calculation for nuclear matrix elements of neutrino-less double beta decay", Center for Compt. Sci., Univ. Tsukuba (Y.Iwata, N. Shimizu, Y. Utsuno, T. Abe, T. Otsuka, T. Togashi, T. Yoshida, T. Miyagi)

2015 - 2016 FY 2015 MEXT Grant-in-Aid for Scientific Research 2603 公A02 (J. Terasaki, Y. Iwata and N. Hinohara), (400,000 JPY for Y. I.)

2014 - 2015 FY2014 Inter-University Research Project, supported by Tokyo Institute of Technology "A microscopic study of nuclear fission by time-dependent density functional theory" (Yoritaka Iwata、Chikako Ishizuka、Satoshi Chiba)(100,000 JPY).

2009 - 2013 FY2009-FY2012 Helmholtz Association of German Research Centres (Project Number:HA216/EMMI).

2007 - 2008 FY2007-FY2008 Grant-in-Aid for JSPS Fellow(Subject Number:07J07805)(900,000 JPY per year).

2006 - 2007 FY2006 Grant-in-Aid for 21st Century COE Research Assistant (1,100,000 JPY).

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Papers (91)：

Yoritaka Iwata. Higher order abstract evolution equations in Besov spaces. RIMS Kokyuroku, Kyoto University; submitted. 2025
S. Sarkar, Y. Iwata, K. Jha, R. Chatterjee. 0⁢ν⁢β⁢β decay of 136 Xe using the nonclosure approach in the nuclear shell model. Phys. Rev. C 111, 014326. 2025
Jirina R. Stone, Pawel Danielewicz, Yoritaka Iwata. Coulomb and symmetry-energy effects on proton and neutron density-distributions in central heavy-ion collisions, across beam energies and system masses. EPJ Web of Conferences 306, 01031 (2024). 2024
Yoritaka Iwata. Abstract Evolution Equations of Hyperbolic type in Besov Spaces. RIMS Kokyuroku 2283, 168 Kyoto University. 2024
Yoritaka Iwata, MIzuki Kunisawa, Li BIheng. Mathematical modeling of evolving society by the generalized diffusion. The Journal of the Japan Society for Economic Education, 2024. No.43, 134-138. 2024

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MISC (21)：

Yoritaka Iwata. Recurrence Formula Connecting Different-Order Differential Equations: User's Guide. Encyclopedia. 2025
Yoritaka Iwata. Algebraic module of unbounded infinitesimal generators. Report of 9th Agebraic Lie Theory and Representation Theory、pp.108ー115. 2024
Yasuhiro Takei, Yoritaka Iwata. Calculating Nonlinear Hyperbolic Evolution Equations. Encyclopeidia. 2022
Yoritaka Iwata, Yasuhiro Takei. Numerical scheme based on the implicit Runge-Kutta method and spectral method for calculating nonlinear hyperbolic evolution equations. esearch reports of Kanagawa Institute of Technology Part B Science and Technology. 2022. 46. 31-40
Yoritaka Iwata, Yasuhiro Takei. Scientic cover figure. 2020

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Books (5)：

理工系の基礎物理学実験
学術図書出版社 2021
Chapter "Operator topology for logarithmic infinitesimal generators"
A chapter of a book "Structure Topology and Symplectic Geometry", IntechOpen 2020 ISBN:9781839625992
Chapter "Linear chain structure in light nuclei"
A chapter of a book "Frontiers in Nuclear and Particle Physics II Progress of time-dependent nuclear reaction theory", Bentham Science Publishers (ISBN: 9781681087658) 2019
Frontiers in Nuclear and Particle Physics II "Progress of time-dependent nuclear reaction theory"
Bentham Science Publishers 2019 ISBN:9781681087658
Chapter "Energy density functional in nuclear physics"
A chapter of a book "Density Functional Theory: Principles, Applications and Analysis", Nova Publishers, New York 2013 ISBN:9781624179556

Lectures and oral presentations (237)：

Generalization of Lanchester Model: application to market in the ICT and AI era
(Japan Association for Evolutionary Economics, Kansai University, Japan 2025)
Development of an economics teaching material using recemt information technology: visualization, sonorizatioio, sonification and artification methods
(Japan Association for Evolutionary Economics, Kansai University, Japan 2025)
Development of an economics teaching material using recemt information technology
(The Japan Society for Economic Education< Kobe, Japan 2025)
Wavelet Art
(Hyper Interdisciplinary Conference Tokyo 2025 2025)
Fractional power of infinitesimal generator of $C^0$-group on Banach spaces
(Evolution equations and applications, Tokyo, Japan 2024)

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Works (67)：

Session Chair, The Japanese Society for Economic Education
2025 - 現在
AESJ meeting, session chair
2019 - 現在
JPS meeting, session chair
2016 - 現在
Representative of the Committee member of International workshop NME2025, Osaka University
2025 -
organization committee member (scientific secretary) of International workshop NME2023, Osaka University
2023 -

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Education (3)：

2005 - 2008 The University of Tokyo Graduate School of Science Department of Physics
2000 - 2005 Osaka University Graduate School of Information Science and Technology Department of Information and Physical Sciences
1996 - 2000 Osaka University School of Engineering Department of Applied Science

Professional career (2)：

Dr. Sci. (The University of Tokyo)
Dr. Inf. Sci. (Osaka University)

Work history (16)：

2023/04 - 現在 Osaka University of Economics and Law Faculty of Business・Faculty of International Studies Associate Professor
2019/04 - 2023/03 Kansai University Faculty of Chemistry, Materials and Bioengineering Specially-appointed Associate Professor
2016/04 - 2019/03 Tokyo Institute of Technology Institute of Innovative Research Research Fellow
2013/01 - 2016/03 Graduate School of Science, The University of Tokyo Specially-Appointed Assistant Professor
2009/04 - 2012/12 [Germany] GSI Helmholtz center for heavy-ion research EMMI Postdoctral fellow

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Committee career (24)：

2024/04 - 現在 AESJ Computational Science and Engineering Division committee member (planning committee for AESJ meetings)
2024/04 - 現在 Academic Affairs Committee Member, Osaka University of Economics and Law
2024/04 - 現在 Referee, Journal of Nuclear Science and Technology, Taylor & Francis IF= 2.0; 2022
2024/03 - 現在 Referee, Eur. Phys. J. Plus, Springer Nature IF= 3.4; 2022
2023/10 - 現在 Reviewer AIMS Mathematics (American Institute of Mathematical Sciences) IF= 2.2; 2022

2023/09 - 現在 Referee Physical Review C, American Physical Society IF= 3.1; 2022

2023/09 - 現在 Reviewer Journal of Economic Structures (Springer Nature), IF= 0.716; 2022

2023/04 - 現在 Comittee for Operation of Information Education Committee member

2022/02 - 現在 Guest Editor: [Mathemtical journal] Guest Editor for Frontiers in Physics ”Front. Phys.” (IF = 3.560; 2020)

2021/04 - 現在 Reviewer Board Member, Selection of HPCI system research subjects High performance computing infrastructure, Japan

2021/01 - 現在 Referee, Journal of Risk and Financial Management, MDPI

2021/01 - 現在 Referee, Symmetry, MDPI IF= 2.7

2021/01 - 現在 Referee, Algorithms, MDPI IF= 2.3

2021/01 - 現在 Topic Editor & Reviewer: [Mathemtical journal] ”Mathematics” (Impact Factor IF = 1.249)

2021/01 - 現在 Reviewer Board Member: [Mathemtical journal] ”Axioms” (Impact Factor IF = 1.249) https://www.mdpi.com/journal/axioms/submission_reviewers

2020/10 - 現在 Review Editor: [Physical journal] Review Editor of "Frontiers in Physics - Nuclear Physics"

2020/04 - 現在 AESJ Computational Science and Engineering Division committee member (program organizer for AESJ meetings)

2025/01 - Chair of organization committee, International workshop NME2025, Osaka University)

2023/07 - 2024/06 Japan Atomic Energy Society Member of working group for position statement working group (elected from computational science division)

2022/04 - 2024/03 AESJ Computational Science and Engineering Division Dean of the Public Relations Committee (program organizer for AESJ meetings)

2023/12 - organization committee member (scientific secretary) of International workshop NME2023, Osaka University)

2022/10 - 2023/09 Japan Atomic Energy Agency Member of working group for framework building (elected from computational science division)

2019/04 - 2023/03 "Physics Experiment for Freshmen" in Kansai University Subject chief

2016/07 - 2023/03 Scientific Secretary, Tsubame Lounge Seminar Series, Tokyo Institute of Technology Scientific Secretary, Tsubame Lounge Seminar Series, Tokyo Institute of Technology

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Awards (6)：

2024 - [authorized by Elsevier Journal Metric Team] Top 8 most downloaded articles within 90 days Recurrence formula for some higher order evolution equations, Chaos, Solitons & Fractals: X 13 (2024) 100119
2020 - [authorized by Institute of Physics, UK] Top 20 Highest Altmetric Scores in New Journal of Physics for 2019-2020 (Iwata-Stevenson, New J. Phys. 21 (2019) 043010)
2020 - HPCI Award for Excellent Achievements "Nuclear matrix element for neutrinoless double beta decay"
2020 - Best Presentation Award, ICCMS 2020, Brisbane, Australia
2019 - Computation Science CG award (Atomic Energy Society of Japan)

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Association Membership(s) (6)：

JAPAN SOCIETY OF ECONOMIC EDUCATION , ATOMIC ENERGY SOCIETY OF JAPAN , The Physical Society of Japan , The Mathematical Society of Japan , Japan Associaion for Education of Information Studies , International Association of Mathematical Physics

※ Researcher’s information displayed in J-GLOBAL is based on the information registered in researchmap. For details, see here.

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