Takemi Shigeta - My portal

Profile Information

Affiliation: Professor, Laboratory of Applied Mathematics, Center for Pharmacy Preparatory Education, Showa Pharmaceutical University

Degree: Ph.D. in Science

Researcher number: 50389152
ORCID ID: https://orcid.org/0009-0002-5075-1630
J-GLOBAL ID: 200901090558578120
researchmap Member ID: 5000068013

External link

Research Interests

Research Areas

Research History

Apr, 2018 - Present

Professor, Laboratory of Applied Mathematics, Center for Pharmacy Preparatory Education, Showa Pharmaceutical University
Apr, 2019 - Sep, 2021

Part-time Lecturer, Mathematics and Infomatics, Ibaraki University
Feb, 2018 - Mar, 2018

Professor, Laboratory of Applied Mathematics, Center for Education of Fundamental Pharmaceutical Sciences, Showa Pharmaceutical University
Apr, 2012 - Jan, 2018

Associate Professor, Laboratory of Applied Mathematics, Center for Education of Fundamental Pharmaceutical Sciences, Showa Pharmaceutical University
Apr, 2013 - Sep, 2013

Part-time Lecturer, Mathematics and Informatics Course, College of Science, Ibaraki University
May, 2007 - Mar, 2012

Post-doctoral Research Fellow, Department of Civil Engineering, National Taiwan University
Apr, 2004 - Mar, 2007

Assistant Professor, Department of Electronics and Computer Science, Tokyo University of Science, Yamaguchi
Nov, 2000 - Mar, 2004

Post-doctoral Researcher, High Technology Research Center, College of Industrial Technology, Nihon University
May, 2000 - Aug, 2000

Visiting Researcher, Department of Mathematics, City University of Hong Kong

Education

Apr, 1997 - Mar, 2000

Course of Developing Mathematical Science, Major of Physical Sciences, Graduate School of Science and Engineering, Ibaraki University
Apr, 1995 - Mar, 1997

Major of Mathematics, Graduate School of Science, Tokyo University of Science
Apr, 1991 - Mar, 1995

Department of Applied Mathematics, Faculty of Science, Tokyo University of Science

Awards

Jun, 2003

Encouraging Prize, Japan Society for Simulation Technology, Japan Society for Simulation Technology

Papers

Ill-conditioned simultaneous linear equations to which the regularized solution almost coincides with the exact one

Shigeta, T

BULLETIN of Showa Pharmaceutical University, 55 1-9, Mar, 2018 Lead author
Reconstruction of the non-homogeneous term of simultaneous linear equations using the truncated singular value decomposition

Takemi Shigeta

Transactions of the Japan Society for Computational Methods in Engineering, 17 43-46, Dec, 2017 Peer-reviewedLead author
Modified Schwarz alternating method and its convergence property

Takemi Shigeta

Transactions of the Japan Society for Computational Methods in Engineering, 14 7-12, Dec, 2014 Peer-reviewedLead author
Adaptive multilayer method of fundamental solutions using a weighted greedy QR decomposition for the Laplace equation

Takemi Shigeta, D. L. Young, Chein-Shan Liu

JOURNAL OF COMPUTATIONAL PHYSICS, 231(21) 7118-7132, Aug, 2012 Peer-reviewedLead author
Regularized solutions with a singular point for the inverse biharmonic boundary value problem by the method of fundamental solutions

Takemi Shigeta, D. L. Young

ENGINEERING ANALYSIS WITH BOUNDARY ELEMENTS, 35(7) 883-894, Jul, 2011 Peer-reviewedLead author
Mathematical and numerical studies on meshless methods for exterior unbounded domain problems

Takemi Shigeta, D. L. Young

JOURNAL OF COMPUTATIONAL PHYSICS, 230(17) 6900-6915, Jul, 2011 Peer-reviewedLead author
Mathematical aspects and numerical computations of an inverse boundary value identification using the adjoint method

Shigeta, T

Far East Journal of Applied Mathematics, 39(2) 81-93, Feb, 2010 Peer-reviewedLead author
Method of fundamental solutions with optimal regularization techniques for the Cauchy problem of the Laplace equation with singular points

Takemi Shigeta, D. L. Young

JOURNAL OF COMPUTATIONAL PHYSICS, 228(6) 1903-1915, Apr, 2009 Peer-reviewedLead author
Numerical solution to the Cauchy problem of the Laplace equation with noisy data

Onishi, K, Shirota, K, Shigeta, T

Theoretical and Applied Mechanics Japan, 57 481-486, 2009 Peer-reviewed
A computational method for the boundary vector of a BMAP/G/1 queue

Shoichi Nishimura, Hiroyuki Tominaga, Takemi Shigeta

JOURNAL OF THE OPERATIONS RESEARCH SOCIETY OF JAPAN, 49(2) 83-97, Jun, 2006 Peer-reviewed
Marker particle method using triangular finite elements for free surface flow problems

Shigeta, T, Tosaka, N

INFORMATION, 9(3) 395-402, May, 2006 Peer-reviewedLead author
Combination of the finite and the boundary element methods for an external boundary value problem of the Poisson equation

T Shigeta, T Harayama, K Shirota

JOURNAL OF THE CHINESE INSTITUTE OF ENGINEERS, 22(6) 777-783, Nov, 1999 Peer-reviewedLead author
Numerical approach for a magnetostatic unbounded domain problem using the finite and the boundary elements

Shigeta, T

Theoretical and Applied Mechanics, 48 431-439, 1999 Peer-reviewedLead author
Modelling the horizontal flow of the atmosphere using finite elements

N Ichikawa, T Shigeta, K Shirota

INTERNATIONAL JOURNAL OF COMPUTER APPLICATIONS IN TECHNOLOGY, 11(3-5) 281-310, 1998 Peer-reviewed

Misc.

Improvement of the Method of Fundamental Solutions Using a Weighted Greedy QR Decomposition

18 4p, Jun, 2013
Condition number and the related mathematical study on boundary meshless methods for the Laplace equation in an exterior unbounded domain

Shigeta, T, Young, D. L

Joint International Workshop on Trefftz Method VI and Method of Fundamental Solutions II, National Sun Yat-sen University, Kaohsiung, Taiwan, 1-30, Mar 16, 2011
Der-Liang Young Laboratory, Department of Civil Engineering, National Taiwan University

Shigeta, Takemi

[Laboratory], Bulletin of the Japan Society for Industrial and Applied Mathematics, 19(1) 56-58, Mar, 2009 Invited
Rank reduction technique for the Laplace equation in mind with noisy cauchy data

Onishi, K, Ohura, Y, Shigeta, T, Shirota, K

Transactions of the Japan Society for Computational Methods in Engineering, 8 43-48, Nov, 2008 Peer-reviewed
Regularization by rank reduction associated with the Cauchy problem of the Laplace equation

Onishi, K, Shirota, K, Shigeta, T

The International Conference on Inverse Problems and its Applications: Dedicate to Prof. V. Isakov and Prof. G. Nakamura’s 60th birthday, Fudan University, Shanghai, China, Oct 8, 2008
Numerical method for the inverse source problem in the linear elastic wave equations

Shirota, K, Shigeta, T, Onishi, K

The International Conference on Inverse Problems and its Applications: Dedicate to Prof. V. Isakov and Prof. G. Nakamura’s 60th birthday, Fudan University, Shanghai, China, Oct 8, 2008
Numerical method for the inverse source problem in the linear elastic wave equations

Shirota, K, Shigeta, T, Onishi, K

The Japan Society for Industrial and Applied Mathematics, 289-290, Sep 17, 2008
Rank reduction technique for initial value problem of the Laplace equation with noisy data

Onishi, K, Shigeta, T, Shirota, K

The Japan Society for Industrial and Applied Mathematics, 291-292, Sep 17, 2008
Harmonic continuation of the solution with singular points for the Cauchy problem of the Laplace equation using the charge simulation method

Shigeta, T, Young, D. L

The 57th National Congress of Theoretical and Applied Mechanics, 519-520, Jun 10, 2008
Numerical method for the solution of initial value problem of the Laplace equation with erroneous Cauchy data

Onishi, K, Shirota, K, Shigeta, T

The 57th National Congress of Theoretical and Applied Mechanics, 517-518, Jun 10, 2008
Second Asia-Pacific International Conference on Computational Methods in Engineering 2006: ICOME2006

Shigeta, Takemi

[Conference Report], Bulletin of the Japan Society for Industrial and Applied Mathematics, 17(2) 85-86, Jun, 2007 Invited
Mathematical aspects and numerical computations of an inverse boundary value identification using the adjoint method

Shigeta, T

2nd Asia-Pacific International Conference on Computational Methods in Engineering (ICOME2006), China, 1-7, Nov 15, 2006
Convergence property of the variational method for the Cauchy problem of the Laplace equation

Shigeta, T

Inverse Problems in Applied Sciences ? towards breakthrough ?, Hokkaido University, Hokkaido, 84, Jul 3, 2006
Numerical solution to an inverse boundary value problem by a new control of the step size

Shigeta, T

The 35th Numerical Analysis Symposium, 111-114, Jun 15, 2006
Liquid crystal display by doping nanoparticles

Kobayashi, S, Miyama T, Takatoh, K, Shigeta, T

The 6th Symposium of Liquid Crystal Institute, 2-3, Mar 20, 2006
Variational computational method for an inverse problem of electrocardiography and its convergence

Shigeta, T

Symposium of Academic Frontier Project, 1, Mar 14, 2006
Determination of the optimal parameter on the variational method for the Cauchy problem of the Laplace equation

Shigeta, T

The 55th National Congress of Theoretical and Applied Mechanics, 477-478, Jan 26, 2006
Convergence of a numerical method based on the variational method for an inverse boundary value problem

Shigeta, T

The 9th Symposium of Research Group of Applied Mathematical Science, The Japan Society for Industrial and Applied Mathematics, 82-87, Nov 13, 2005
Marker particle method using triangular finite elements for free surface flow problems

Shigeta, T, Tosaka, N

Proceedings of The Third International Conference on Information (Info'2004), Tokyo, 326-329, Nov 29, 2004
Numerical computation of free surface flow problem using a second-order accurate marker particle method

Shigeta, T, Tosaka, N

The Computational Mechanics Conference, The 17th Japan Society of Mechanical Engineers, 2004(17) 397-398, Nov 19, 2004

Presentations

An Iterative Domain Decomposition Method with the Modified Method of Fundamental Solutions and the Fast Fourier Transform

Shigeta, T

The 7th Asia-Pacific International Conference on Computational Methods in Engineering (ICOME2023)
Fundamental Regularization Method and Reconstruction of Simultaneous Equations

Shigeta, T

Department of Harbor and River Engineering, National Taiwan Ocean University, Aug 9, 2023 Invited
非有界領域問題に対する局所化基本解近似解法

繁田岳美

第25回計算工学講演会
Improved numerical solution to the exterior Stokes problem using the method of fundamental solutions

Shigeta, T, Shiue, M.C

The 7th Asian Pacific Congress on Computational Mechanics (APCOM2019), Dec 17, 2019
Improvement in the ill-conditioning of boundary meshless methods for unbounded domain problems of the Laplace equation

Shigeta, T

Department of Applied Mathematics, National Chiao Tung University (Hsinchu, Taiwan), Dec, 2011, Professor Ming-Cheng Shiue and Professor Ming-Chih Lai Invited
Numerical methods for the Cauchy problem of the Laplace equation ? Mathematical aspect of the adjoint method and numerical computation using the method of fundamental solutions with the Tikhonov regularization ?

Shigeta, T

Department of Applied Mathematics, Tatung University (Taipei, Taiwan), May, 2008, Professor Terence Liu Invited
Method of fundamental solutions with optimal regularization techniques for the Cauchy problem of the Laplace equation with singular points

Shigeta, T

Department of Civil Engineering, National Taiwan University, Taipei (Taipei, Taiwan), Apr, 2008, Professor H. Capart and Professor Der-Liang Young Invited

Teaching Experience

Apr, 2012 - Present

Practice in Information Science (Showa Pharmaceutical University)
Apr, 2012 - Present

Linear Algebra (Showa Pharmaceutical University)
Apr, 2012 - Present

Calculus (Showa Pharmaceutical University)
Apr, 2019 - Sep, 2021

Information Society and Ethics (Ibaraki University)
Apr, 2012 - Jul, 2015

Medical Statistics (Showa Pharmaceutical University)
Apr, 2013 - Sep, 2013

Introduction to Simulations (Ibaraki University)

Professional Memberships

Research Projects

Study on convergence properties of the variational method for an inverse boundary value problem

Young Scientists (B), Grant-in-Aid for Scientific Research, 若手研究(B), The Ministry of Education, Culture, Sports, Science and Technology, 2006 - 2007

Takemi Shigeta

Academic Activities

Review of Engineering Analysis with Boundary Elements

Peer review

Apr, 2024
Review of Ocean Engineering

Peer review

Mar, 2024
Review of Ocean Engineering

Peer review

Feb, 2024
Review of Engineering Analysis with Boundary Elements

Peer review

Jan, 2024
Session chair in The 7th Asia-Pacific International Conference on Computational Methods in Engineering (ICOME2023),

Panel moderator, session chair, etc.

Nov 2, 2023 - Nov 5, 2023
Review of Engineering Analysis with Boundary Elements

Peer review

Nov, 2020
Review of Numerical Methods for Partial Differential Equations

Peer review

Nov, 2020
Review of Engineering Analysis with Boundary Elements

Peer review

Aug, 2020
Review of Mathematics and Computers in Simulation

Peer review

Jul, 2020
Review of Mathematics and Computers in Simulation

Peer review

Apr, 2020
Review of Mathematics and Computers in Simulation

Peer review

Jan, 2020
Session chair in the 7th Asian Pacific Congress on Computational Mechanics (APCOM2019),

Panel moderator, session chair, etc.

Dec 17, 2019 - Dec 20, 2019
Review of Transactions of the Japan Society for Industrial and Applied Mathematics

Peer review

Jun, 2015
Review of Transactions of the Japan Society for Industrial and Applied Mathematics

Peer review

Dec, 2013
Session chair in International Conference on Computational Methods in Engineering (ICOME 2012),

Panel moderator, session chair, etc.

Dec 12, 2012 - Dec 14, 2012
Review of Engineering Analysis with Boundary Elements

Peer review

May, 2011
Review of Computer Physics Communications

Peer review

Apr, 2010
Oral Examination Committee for Master Thesis, Department of Civil Engineering, National Taiwan University

Review, evaluation

Jul 23, 2009
Session chair in 2nd Asia-Pacific International Conference on Computational Methods in Engineering (ICOME 2006),

Panel moderator, session chair, etc.

Nov 14, 2006 - Nov 16, 2006

Social Activities

学校法人明法学院評議員

Logistic support

Jun 23, 2014 - Present
塾ジャーナル辛口コラム

Contributor

塾ジャーナル, Jan, 2004 - Present
月刊私塾界日本教育ペンクラブ・リレー寄稿

Contributor

月刊私塾界, Aug, 1996 - Present
明法高等学校 1年生理系向け講演

Lecturer

明法高等学校, Jan 29, 2024

Other

Reviewer

1. Numerical Methods for Partial Differential Equations 2. Mathematics and Computers in Simulation 3. Computer Physics Communications 4. Engineering Analysis with Boundary Elements 5. Transactions of the Japan Society for Industrial and Applied Mathematics 6. Ocean Engineering