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MIZUGUCHI Makoto
EconomicsAssociate Professor
Economics

Researcher information

■ Degree
  • Feb. 2017
  • Mar. 2013
■ Field Of Study
  • Natural sciences, Applied mathematics and statistics
■ Career
  • Apr. 2026 - Present, Saitama University, Graduate School of Humanities and Social Science, Faculty of Economics
  • Apr. 2021 - Mar. 2026
  • Sep. 2018 - Mar. 2021
  • Apr. 2018 - Sep. 2018
  • Apr. 2017 - Mar. 2018
■ Educational Background
  • Apr. 2013 - Feb. 2017, Waseda University
  • Apr. 2011 - Mar. 2013, Waseda University
  • Apr. 2007 - Mar. 2011, Gakushuin University, Department of Mathematics
■ Member History
  • Apr. 2020 - Mar. 2023
■ Award
  • Jun. 2022, 第18回若手優秀講演賞
  • Oct. 2015, Student Presentation Award, Verified computations for solutions of semilinear heat equations using an analytic semigroup generated by a self-adjoint operator, The 34th JSST Annual Conference International Conference on Simulation Technology (JSST2015)
    Makoto Mizuguchi

Performance information

■ Paper
  • Error estimates for the fully-discrete Petrov-Galerkin method of a linear parabolic problem
    Makoto Mizuguchi; Mitsuhiro T. Nakao; Kouji Hashimoto; Kouta Sekine; Shin’ichi Oishi
    Japan Journal of Industrial and Applied Mathematics, Volume:42, Number:2, First page:831, Last page:852, Apr. 2025, [Reviewed], [Lead]
    Springer Science and Business Media LLC, English, Scientific journal
    DOI:https://doi.org/10.1007/s13160-025-00696-4
    DOI ID:10.1007/s13160-025-00696-4, ISSN:0916-7005, eISSN:1868-937X
  • 抽象的なHilbert空間の有限次元部分空間への直交射影の誤差に対する最良定数               
    高橋宗久; 関根晃太; 水口信
    Volume:34, Number:1, First page:19, Last page:32, Mar. 2024, [Reviewed]
    Japanese, Scientific journal
    DOI:https://doi.org/10.11540/jsiamt.34.1_19
    DOI ID:10.11540/jsiamt.34.1_19
  • Rigorous numerical inclusion of the blow-up time for the Fujita-type equation
    Makoto Mizuguchi; Kouta Sekine; Kouji Hashimoto; Mitsuhiro T. Nakao; Shin’ichi Oishi
    Japan Journal of Industrial and Applied Mathematics, Volume:40, Number:1, First page:665, Last page:689, Nov. 2022, [Reviewed], [Lead]
    Springer Science and Business Media LLC, English, Scientific journal
    DOI:https://doi.org/10.1007/s13160-022-00545-8
    DOI ID:10.1007/s13160-022-00545-8, ISSN:0916-7005, eISSN:1868-937X
  • Error Constants for the Semi-Discrete Galerkin Approximation of the Linear Heat Equation
    Makoto Mizuguchi; Mitsuhiro T. Nakao; Kouta Sekine; Shin’ichi Oishi
    Journal of Scientific Computing, Volume:89, Number:2, Nov. 2021, [Reviewed], [Lead]
    Springer Science and Business Media LLC, English, Scientific journal
    DOI:https://doi.org/10.1007/s10915-021-01636-3
    DOI ID:10.1007/s10915-021-01636-3, ISSN:0885-7474, eISSN:1573-7691
  • Estimation of Sobolev embedding constant on a domain dividable into bounded convex domains
    Makoto Mizuguchi; Kazuaki Tanaka; Kouta Sekine; Shin’ichi Oishi
    Journal of Inequalities and Applications, Volume:2017, Dec. 2017, [Reviewed], [Lead]
    Springer Science and Business Media LLC, English, Scientific journal
    DOI:https://doi.org/10.1186/s13660-017-1571-0
    Scopus:https://www.scopus.com/inward/record.uri?partnerID=HzOxMe3b&scp=85037051995&origin=inward
    Scopus Citedby:https://www.scopus.com/inward/citedby.uri?partnerID=HzOxMe3b&scp=85037051995&origin=inward
    DOI ID:10.1186/s13660-017-1571-0, ISSN:1025-5834, eISSN:1029-242X, SCOPUS ID:85037051995
  • Accurate method of verified computing for solutions of semilinear heat equations               
    Akitoshi Takayasu; Makoto Mizuguchi; Takayuki Kubo; Shin'chi Oishi
    Reliable Computing, Volume:25, First page:74, Last page:99, Jul. 2017, [Reviewed]
    English, Scientific journal
  • Numerical verification for existence of a global-in-time solution to semilinear parabolic equations               
    Makoto Mizuguchi; Akitoshi Takayasu; Takayuki Kubo; Shin'ichi Oishi
    Journal of Computational and Applied Mathematics, Volume:315, First page:1, Last page:16, May 2017, [Reviewed], [Lead]
    Elsevier BV, English, Scientific journal
    DOI:https://doi.org/10.1016/j.cam.2016.10.024
    DOI ID:10.1016/j.cam.2016.10.024, ISSN:0377-0427
  • Numerical validation of blow-up solutions of ordinary differential equations               
    Akitoshi Takayasu; Kaname Matsue; Takiko Sasaki; Kazuaki Tanaka; Makoto Mizuguchi; Shin’ichi Oishi
    Journal of Computational and Applied Mathematics, Volume:314, First page:10, Last page:29, Apr. 2017, [Reviewed]
    Elsevier BV, English, Scientific journal
    DOI:https://doi.org/10.1016/j.cam.2016.10.013
    DOI ID:10.1016/j.cam.2016.10.013, ISSN:0377-0427, CiNii Articles ID:120005954526, CiNii Books ID:AA00696002
  • Sharp numerical inclusion of the best constant for embedding H_1^0(\Omega) \hookedrightarrow L^p (\Omega) on bounded convex domain               
    Kazuaki Tanaka; Kouta Sekine; Makoto Mizuguchi; Shin’ichi Oishi
    Journal of Computational and Applied Mathematics, Volume:311, First page:306, Last page:313, Feb. 2017, [Reviewed]
    Scientific journal
    DOI:https://doi.org/10.1016/j.cam.2016.07.021
    DOI ID:10.1016/j.cam.2016.07.021, ISSN:0377-0427, eISSN:1879-1778, Web of Science ID:WOS:000386403000023
  • A Method of Verified Computations for Solutions to Semilinear Parabolic Equations Using Semigroup Theory               
    Makoto Mizuguchi; Akitoshi Takayasu; Takayuki Kubo; Shin'ichi Oishi
    SIAM Journal on Numerical Analysis, Volume:55, Number:2, First page:980, Last page:1001, Jan. 2017, [Reviewed], [Lead]
    Society for Industrial & Applied Mathematics (SIAM), English, Scientific journal
    DOI:https://doi.org/10.1137/141001664
    DOI ID:10.1137/141001664, ISSN:0036-1429, eISSN:1095-7170, CiNii Articles ID:120006313795, CiNii Books ID:AA00831298
  • Verified computations for solutions to semilinear parabolic equations using the evolution operator               
    Akitoshi Takayasu; Makoto Mizuguchi; Takayuki Kubo; Shin’ichi Oishi
    Lecture Notes in Computer Science (including subseries Lecture Notes in Artificial Intelligence and Lecture Notes in Bioinformatics), Volume:9582, First page:218, Last page:223, 2016, [Reviewed]
    Springer Verlag, English, International conference proceedings
    DOI:https://doi.org/10.1007/978-3-319-32859-1_18
    DOI ID:10.1007/978-3-319-32859-1_18, ISSN:1611-3349, SCOPUS ID:84964047111
  • On the embedding constant of the Sobolev type inequality for fractional derivatives               
    Makoto Mizuguchi; Akitoshi Takayasu; Takayuki Kubo; Shin'ichi Oishi
    Nonlinear Theory and Its Applications, IEICE, Volume:7, Number:3, First page:386, Last page:394, 2016, [Reviewed], [Lead]
    Institute of Electronics, Information and Communications Engineers (IEICE), English, Scientific journal
    DOI:https://doi.org/10.1587/nolta.7.386
    DOI ID:10.1587/nolta.7.386, ISSN:2185-4106, eISSN:2185-4106, CiNii Articles ID:130005161829
  • Estimation of Sobolev-type embedding constant on domains with minimally smooth boundary using extension operator               
    Kazuaki Tanaka; Kouta Sekine; Makoto Mizuguchi; Shin'ichi Oishi
    JOURNAL OF INEQUALITIES AND APPLICATIONS, Volume:2015, Number:1, Dec. 2015, [Reviewed]
    English, Scientific journal
    DOI:https://doi.org/10.1186/s13660-015-0907-x
    DOI ID:10.1186/s13660-015-0907-x, ISSN:1029-242X, Web of Science ID:WOS:000209864400001
  • Numerical verification of positiveness for solutions to semilinear elliptic problems               
    Kazuaki Tanaka; Kouta Sekine; Makoto Mizuguchi; Shin'ichi Oishi
    JSIAM Letters, Volume:7, First page:73, Last page:76, 2015, [Reviewed]
    The Japan Society for Industrial and Applied Mathematics, English, Scientific journal
    DOI:https://doi.org/10.14495/jsiaml.7.73
    DOI ID:10.14495/jsiaml.7.73, ISSN:1883-0609, eISSN:1883-0617, CiNii Articles ID:130005130524
■ MISC
  • 発展作用素を用いた半線形放物型方程式に対する解の精度保証付き数値計算法               
    高安亮紀; 水口信; 久保隆徹; 大石進一
    Volume:1995, First page:122, Last page:131, 2016
    Japanese
    ISSN:1880-2818, CiNii Articles ID:120006222106, CiNii Books ID:AN00061013
■ Lectures, oral presentations, etc.
  • Gray-Scott方程式のDirichlet境界値問題における逆作用素ノルムの評価法               
    山口 滉介; 関根 晃太; 水口 信
    Sep. 2025
    Sep. 2025 - Sep. 2025, Japanese, Oral presentation
  • コンパクト性を仮定しないHilbert空間における射影誤差定数とスペクトルの関係について               
    高橋 宗久; 関根 晃太; 水口 信
    Mar. 2025
    Mar. 2025 - Mar. 2025, Japanese, Oral presentation
    共同研究・競争的資金等ID:42747435
  • 熱方程式のPetrov型全離散ガレルキン近似の事前誤差評価               
    水口 信; 中尾 充宏; 橋本 弘治; 関根 晃太; 大石 進一
    Sep. 2024
    Sep. 2024 - Sep. 2024, Japanese, Oral presentation
    共同研究・競争的資金等ID:42747435
  • 発展作用素を用いた初期値問題の精度保証付き数値計算~単調性を用いた爆発解検証への適用について~               
    橋本 弘治; 水口 信; 関根 晃太; 中尾 充宏
    Mar. 2024
    Mar. 2024 - Mar. 2024, Japanese, Oral presentation
  • 発展作用素を用いた初期値問題の精度保証付き数値計算~変則的位相を用いた大域解検証への適用について~               
    橋本 弘治; 水口 信; 関根 晃太; 中尾 充宏
    Mar. 2024
    Mar. 2024 - Mar. 2024, Japanese, Oral presentation
  • 放物型方程式の全離散近似解に対する定量的な誤差評価               
    水 口 信; 中 尾 充 宏; 橋 本 弘 治; 関 根 晃 太; 大 石 進 一
    Sep. 2023
    Sep. 2023 - Sep. 2023, Japanese, Oral presentation
    共同研究・競争的資金等ID:42747435
  • The best constants for the projection error on triplet Hilbert spaces               
    Munehisa Takahashi; Kouta Sekine; Makoto Mizuguchi
    Japan Society for Simulation Technology (JSST2023), Aug. 2023
    Aug. 2023 - Aug. 2023, English, Oral presentation
  • 3つのHilbert空間の組における最良な射影誤差定数について               
    高橋 宗久; 関根 晃太; 水口 信
    Sep. 2022
    Sep. 2022 - Sep. 2022, Japanese, Oral presentation
  • 放物型方程式の全離散近似に対する誤差評価について               
    水口 信; 中尾 充宏; 橋本 弘治; 関根 晃太; 大石 進一
    Sep. 2022
    Sep. 2022 - Sep. 2022, Japanese, Oral presentation
  • Numerical verification method for a blow-up solution of Fujita-type equation               
    Makoto Mizuguchi
    International Workshop on Reliable Computing and Computer-Assisted Proofs (ReCAP 2022), Mar. 2022
    Mar. 2022 - Mar. 2022, English, Oral presentation
  • 放物型方程式の半離散近似に対する誤差定数値の評価について               
    水口 信
    Nov. 2021
    Nov. 2021 - Nov. 2021, Japanese, Oral presentation
  • 藤田型方程式の解の爆発時間に対する数値的検証法               
    水口 信
    Sep. 2021, [Invited]
    Sep. 2021 - Sep. 2021, Japanese, Public discourse
  • 楕円型方程式と放物型方程式に対する半離散ガレルキン近似の誤差定数について               
    水口 信; 中尾 充宏; 関根 晃太; 大石 進一
    Sep. 2021
    Sep. 2021 - Sep. 2021, Japanese, Oral presentation
  • 藤田型方程式の解の爆発時間に対する計算機を用いた数値的包含方法について               
    水口信; 関根 晃太; 橋本 弘治; 中尾充宏; 大石 進一
    Dec. 2020
    Japanese, Oral presentation
  • 線形熱方程式の解と半離散近似解との誤差評価の改善               
    水口 信; 中尾 充宏; 関根晃太; 大石 進一
    Sep. 2019
    Japanese, Oral presentation
  • 半線形熱方程式の解の精度保証付き数値計算法について               
    水口信; 関根 晃太; 中尾充宏; 大石進一
    Dec. 2018, [Invited]
    Japanese, Invited oral presentation
  • Estimation of Sobolev embedding constant on a bounded convex domain               
    Makoto Mizuguchi; Kazuaki Tanaka; Kouta Sekine; Shin'ichi Oishi
    18th GAMM-IMACS International Symposium on Scientific Computing, Computer Arithmetic and Verified Numerics (SCAN'2018), Sep. 2018
    English, Oral presentation
  • A numerical verification method for solutions to systems of parabolic equations               
    Makoto Mizuguchi; Kouta Sekine; Shin'ichi Oishi
    The International Workshop on Numerical Verification and its Applications (INVA2017), Mar. 2017
    English, Oral presentation
  • Numerical method for estimationg the best constant in Sobolev type inequality on unit square               
    Kazuaki Tanaka; Kouta Sekine; Makoto Mizuguchi; Shin'ichi Oishi
    The International Workshop on Numerical Verification and its Applications (INVA2017), Mar. 2017
    English, Oral presentation
  • 時間発展問題の精度保証付き数値計算に現れる誤差伝搬の縮小技術               
    高安亮紀; 水口信; 久保隆徹; 大石進一
    Dec. 2016
    Japanese, Oral presentation
  • 放物型方程式に対する解の精度保証付き数値計算法について               
    高安亮紀; 水口信; 久保隆徹; 大石進一
    Nov. 2016
    Japanese, Oral presentation
  • Computable norm bounds of the evolution operator using spectral properties               
    Akitoshi Takayasu; Makoto Mizuguchi; Takayuki Kubo; Shin'ichi Oishi
    The 35th JSST Annual Conference International Conference on Simulation Technology (JSST2016),, Oct. 2016
    English, Oral presentation
  • On verification methods for parabolic partial differential equations using the evolution operator"               
    Akitoshi Takayasu; Makoto Mizuguchi; Takayuki Kubo; Shin'ichi Oishi
    the 17th International Symposium on Scientific Computing, Computer Arithmetics and Verified Numerics (SCAN 2016), Sep. 2016
    English, Oral presentation
  • Verified numerical computations for blow-up solutions of ODEs               
    Akitoshi Takayasu; Kaname Matsue; Takiko Sasaki; Kazuaki Tanaka; Makoto Mizuguchi; Shin'ichi Oishi
    the 17th International Symposium on Scientific Computing, Computer Arithmetics and Verified Numerics (SCAN 2016), Sep. 2016
    English, Oral presentation
  • Lotka-Volterra型偏微分方程式の初期値境界値問題の解に対する精度保証付き数値計算法について               
    水口信; 関根晃太; 大石進一
    Sep. 2016
    Japanese, Oral presentation
  • Computable estimates of the evolution operator based on the operator theory               
    Akitoshi Takayasu; Makoto Mizuguchi; Takayuki Kubo; Shin'ichi Oishi
    Czech-Japanese-Polish Seminar in Applied Mathematics 2016 (CJPS 2016),, Sep. 2016
    English, Oral presentation
  • Verification algorithm for enclosing a mild solution of semilinear heat equations               
    Makoto Mizuguchi; Kouta Sekine; Akitoshi Takayasu; Takayuki Kubo; Shin'ichi Oishi
    The fifth Asian conference on Nonlinear Analysis and Optimization (NAO-Asia 2016), Aug. 2016
    English, Oral presentation
  • Concatenation scheme for verified inclusion of solutions to semilinear heat equations               
    Akitoshi Takayasu; Makoto Mizuguchi; Takayuki Kubo; Shin'ichi Oishi
    The fifth Asian conference on Nonlinear Analysis and Optimization (NAO-Asia 2016), Aug. 2016
    English, Oral presentation
  • Verified Computations for Solutions to Nonlinear Heat Equations Based on Fractional Powers of a Positive Operator and the Evolution Operator               
    Akitoshi Takayasu; Makoto Mizuguchi; Takayuki Kubo; Shin'ichi Oishi
    5th European Seminar on Computing (ESCO 2016), Jun. 2016
    English, Oral presentation
  • 重み付きラプラス作用素の分数べきに対する計算可能なソボレフの埋め込み定数               
    水口信, 高安亮紀, 久保隆徹, 大石進一:
    Mar. 2016
    Japanese, Oral presentation
  • 正値作用素の分数冪と発展作用素を用いる非線形熱方程式に対する解の精度保証付き数値計算法               
    高安亮紀; 水口信; 久保隆徹; 大石進一
    Mar. 2016
    Japanese, Oral presentation
  • 放物面コンパクト化を用いる常微分方程式の爆発解の数値的検証法               
    高安亮紀; 松江要; 佐々木多希子; 田中一成; 水口信; 大石進一
    Mar. 2016
    Japanese, Oral presentation
  • 発展作用素を用いた半線形放物型方程式に対する解の精度保証付き数値計算法               
    高安亮紀; 水口信; 久保隆徹; 大石進一
    Nov. 2015
    Japanese, Oral presentation
  • Verified computations for solutions to semilinear parabolic equations using the evolution operator               
    Akitoshi Takayasu; Makoto Mizuguchi; Takayuki Kubo; Shin'ichi Oishi
    Sixth International Conference on Mathematical Aspects of Computer and Information Sciences (MACIS2015), Nov. 2015
    English, Oral presentation
  • Numerical existence theorem for solutions of semilinear parabolic equations using the evolution operator               
    Akitoshi Takayasu; Makoto Mizuguchi; Takayuki Kubo; Shin'ichi Oishi
    The 34th JSST Annual Conference International Conference on Simulation Technology (JSST2015), Oct. 2015
    English, Oral presentation
  • Verified computations for solutions of semilinear heat equations using an analytic semigroup generated by a self-adjoint operator               
    Makoto Mizuguchi; Kouta Sekine; Akitoshi Takayasu; Takayuki Kubo; Shin'ichi Oishi
    The 34th JSST Annual Conference International Conference on Simulation Technology (JSST2015), Oct. 2015
    English, Oral presentation
  • Verified numerical enclosure of blow-up time for ODEs               
    高安亮紀; 松江要; 佐々木多希子; 田中一成; 水口信; 大石進一
    Sep. 2015
    Japanese, Oral presentation
  • ある自己共役作用素から生成される解析半群を用いた半線形熱方程式の解の数値的検証法               
    水口信; 関根晃太; 高安亮紀; 久保隆徹; 大石進一
    Sep. 2015
    Japanese, Oral presentation
  • 常微分方程式の爆発解に対する精度保証付き数値計算               
    高安亮紀; 松江要; 佐々木多希子; 田中一成; 水口信; 大石進一
    Sep. 2015
    Japanese, Oral presentation
  • 常微分方程式の解の爆発時刻に対する精度保証付き数値計算               
    高安亮紀; 松江要; 佐々木多希子; 田中一成; 水口信; 大石進一
    Jun. 2015
    Japanese, Oral presentation
  • 半線形放物型偏微分方程式に対する解の精度保証付き数値計算               
    高安亮紀; 水口信; 久保隆徹; 大石進一
    Mar. 2015
    Japanese, Oral presentation
  • 発展方程式の解に対する精度保証付き数値計算法を用いた時間大域解の存在証明               
    水口信; 高安亮紀; 久保隆徹; 大石進一
    Mar. 2015
    Japanese, Oral presentation
  • 半線形熱方程式の解に対する精度保証付き数値計算法を用いた時間大域解の存在証明               
    水口信; 高安亮紀; 久保隆徹; 大石進一
    Mar. 2015
    Japanese, Oral presentation
  • 藤田型方程式に対する時間大域解の精度保証付き数値計算               
    高安亮紀; 水口信; 久保隆徹; 大石進一
    Dec. 2014
    Japanese, Oral presentation
  • Numerical verification of solutions for the Fujita type parabolic equations               
    Makoto Mizuguchi; Akitoshi Takayasu; Takayuki Kubo; Shin'ichi Oishi
    The 14th Asia Simulation Conference & The 33rd JSST Annual Conference: International Conference on Simulation Technology (AsiaSim & JSST 2014), Oct. 2014
    English, Oral presentation
  • A sharper error estimate of verified computations for nonlinear heat equations               
    Makoto Mizuguchi; Akitoshi Takayasu; Takayuki Kubo; Shin'ichi Oishi
    16th GAMM-IMACS International Symposium on Scientific Computing, Computer Arithmetic and Verified Numerics (SCAN2014), Sep. 2014
    English, Oral presentation
  • A method of verified computations for nonlinear parabolic equations               
    Makoto Mizuguchi; Akitoshi Takayasu; Takayuki Kubo; Shin'ichi Oishi
    16th GAMM-IMACS International Symposium on Scientific Computing, Computer Arithmetic and Verified Numerics (SCAN2014), Sep. 2014
    English, Oral presentation
  • 藤田型方程式に対する時間大域解の計算機援用証明               
    高安亮紀; 水口信; 久保隆徹; 大石進一
    Sep. 2014
    Japanese, Oral presentation
  • A method of verified computations for nonlinear homogeneous heat equations, Part II: Semigroup approach to construct an exact solution for time variable               
    Makoto Mizuguchi; Akitoshi Takayasu; Takayuki Kubo; Shin'ichi Oishi
    The International Workshop on Numerical Verification and its Applications 2014 (INVA 2014), Mar. 2014
    English, Oral presentation
  • A method of verified computations for nonlinear homogeneous heat equations, Part I: Enclosure of semidiscrete approximate solution for space variable               
    Makoto Mizuguchi; Akitoshi Takayasu; Takayuki Kubo; Shin'ichi Oishi
    The International Workshop on Numerical Verification and its Applications 2014 (INVA 2014), Mar. 2014
    English, Oral presentation
  • A priori error estimate of inhomogeneous heat equations using rational approximation of semigroups               
    Makoto Mizuguchi; Takayuki Kubo; Akitoshi Takayasu; Shin'ichi Oishi
    International Conference on Simulation Technology (JSST 2013),, Sep. 2013
    English, Oral presentation
  • Estimation of an embedding constant on Lipschitz domains using extension operators               
    Kazuaki Tanaka; Makoto Mizuguchi; Kouta Sekine; Akitoshi Takayasu; Shin'ichi Oishi
    International Conference on Simulation Technology (JSST 2013), Sep. 2013
    English, Oral presentation
  • 拡張作用素を用いたLipschitz領域における埋め込み定数の評価法               
    田中一成; 水口信; 関根晃太; 高安亮紀; 大石進一
    Sep. 2013
    Japanese, Oral presentation
  • 半群理論を用いた非斉次熱方程式の全離散近似解に対する事前誤差評価               
    水口信; 久保隆徹; 高安亮紀; 大石進一
    Mar. 2013
    Japanese, Oral presentation
■ Research projects
  • 半線形熱方程式の爆発解の厳密な爆発時間の解明と未知の実現象に対する研究基盤の確立               
    Apr. 2023 - Mar. 2028
    Grant amount(Total):4680000, Direct funding:3600000, Indirect funding:1080000
    Grant number:23K13018
    講演・口頭発表等ID:49800753
  • 精度保証付き数値計算法を用いた反応拡散系の大域解の解析               
    Apr. 2018 - Mar. 2023
    Grant amount(Total):4160000, Direct funding:3200000, Indirect funding:960000
    Competitive research funding, Grant number:18K13462
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