2014 - 2019 Joint Research into Mathematical Science for Qunatum Information Devices
2014 - 2018 Operator and Spectral Analyses for Differential Operators with Matrix-Coefficient
2014 - 2017 Stochastic analysis on infinite dimensional spaces and its related differential operators
2011 - 2014 Non-perturbative spectral analysis of quantum system by stochastic method
2011 - 2013 Applications of Renormalization Group Methods in Mathematical Sciences
2011 - 2013 Spectral Analysis on the Schroedinger Operators with Matrix Coefficients and Its Applications
2009 - 2012 Spectral asymptotic analysis for Schrodinger operators
2008 - 2010 Mathematical Study of Renormalization Groups and applications to Dynamical System
2008 - 2010 Operator-Analytical Study of Singularities Appearing in Quantum Theory
2008 - 2010 Non-perturbative analysis of quantum interaction systems
2007 - 2009 グロタンディークデッサンと悲合同的タイヒミュラー被覆の数論
2006 - 2008 Asymptotic Analysis in Spectral and Scattering Theory
2006 - 2007 Operator-Theoretical Research of Two-Body System in Non-Relativistic Quantum Field Theory
2005 - 2007 量子場と結合したシュレディンガー作用素のスペクトルと有効質量の研究
2004 - 2007 Functional Analysis of Quantum Systems with Infinite Degree ofFir Freedom
2004 - 2005 Research on Operator Analysis for Nonrelativistic Quantum Dynamics in High Energy Region
2004 - 2005 モジュライ空間の算術幾何に対する種種のグラフ複合体の関与の研究
2003 - 2005 Scattering of Dirac particles by mabnetic fields and spectral theory
2002 - 2005 Galois groups and fundamental groups in anabelian geometry
2003 - 2004 Nonperturbative analysis of charged-particle-system interacting with a quantum field
2001 - 2003 OPERATOR-ANALYTICAL STUDY OF SINGULARITIES OF HAMILTONIANS IN QUANTUM PHYSICS
2001 - 2003 The application of the theory of the pseudo-diffrential operators to the Feynman path integral
2001 - 2002 Scattering by magnetic fields and Aharonov-Bohm effect
1999 - 2000 一般化されたスピン・ボゾン模型の無限次元解析学による研究
1999 - 2000 Harmonic analysis on discrete structures and its applications to classical and quantum probability models
1999 - 2000 Spectral Theory for Schrodinger Operators with Magnetic Fields and its Application
1997 - 1998 量子力学及び場の量子論における数学的諸問題への無限次元解析によるアプローチ
1997 - 1998 Study on Representations of Algebras and Derived Categories
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Papers (44)：
Tomohiro Fujii, Shinsuke Yamamoto, Toshiki Yamasaki, Masao Hirokawa. Concealing-Restoring System for Analog Images. 2023 International Conference on Electrical, Computer and Energy Technologies (ICECET). 2023
Tomohiro Fujii, Masao Hirokawa. On Performance of Concealing-Restoring System for Analog Signals on Physical Layer. 2022 International Conference on Electrical, Computer and Energy Technologies (ICECET). 2022
Tomohiro Fujii, Masao Hirokawa. Concealing-restoring system for physical layer data: Based on stochastic filtering theory. Physical Communication. 2022. 52. 101602-101602
Masao Hirokawa. On Accuracy of Restoration of Concealing-Restoring System for Physical Layer. 2021 International Conference on Electrical, Computer and Energy Technologies (ICECET). 2021
Tomohiro Fujii, Masao Hirokawa. A Data Concealing Technique with Random Noise Disturbance and a Restoring Technique for the Concealed Data by Stochastic Process Estimation. Mathematics for Industry. 2021. 33. 103-124
HIROKAWA Masao. Non-Commutative Oscillators and Cavity-Induced Atom Cooling (Non-Commutative Analysis and Micro-Macro Duality). RIMS Kokyuroku. 2009. 1658. 58-77
HIROKAWA Masao. The Dicke-Type Transition for Non-Commutative Harmonic Oscillators in the Light of Cavity QED (Spectral and Scattering Theory and Related Topics). RIMS Kokyuroku. 2008. 1607. 93-112
HIROKAWA Masao. Stability of Formation of Large Bipolaron(Micro-Macro Duality in Quantum Analysis). RIMS Kokyuroku. 2007. 1565. 86-92
Hirokawa Masao. Some of Bipolaron Problems(Applications of Renormalization Group Methods in Mathematical Sciences). RIMS Kokyuroku. 2006. 1482. 11-21
HIROKAWA Masao. Infrared Catastrophe and Carleman Operator(Spectral and Scattering Theory and Related Topics). RIMS Kokyuroku. 2006. 1479. 40-48
Topological Superconductors in Ferromagnetic Nanowires with Domain Wall
(2019 Joint MMM-Intermag Conference 2019)
Topological Superconductors in Ferromagnetic Nanowire with Domain Wall
(The 79th JSAP Autumn Meeting, 2018 2018)
Approximated Eigenstates of Generalized Quantum Rabi Model with A^2-Term in Deep-Strong Coupling Regime
(Strongly Coupled Light-Matter Interactions: Models and Applications 2018)
Quantum simulation of atom coupled to Bose field(s)
(Phenomena Mathematics Seminar 2017)
Virtual and real photons in ground state of generalized quantum Rabi model in ultra-strong coupling regime
(Mini-Workshop on ``Virtual Photons in Ultra-Strongly Coupled Systems'' 2017)
2014/11 - 2017/10 The International Union of Pure and Applied Physics Member of the Commission 18 of The International Union of Pure and Applied Physics
2014/11 - 2017/10 The International Union of Pure and Applied Physics The International Union of Pure and Applied Physics, C18委員会委員
2014/10 - 2016/05 岡山県 岡山光量子科学研究所評議員会評議員
2009/10 - 2015/09 The International Association of Mathematical Physics Member of The Board of The International Association of Mathematical Physics News Bulletin
2009/10 - 2015/09 The International Association of Mathematical Physics Member of The Board of The International Association of Mathematical Physics News Bulletin
2014/10 - 2015/03 岡山県 岡山光量子科学研究所外部評価(機関評価)委員会委員
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Association Membership(s) (3)：
The Physical Society of Japan
, The Japan Society of Applied Physics
, The Society for Industrial and Applied Mathematics
