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Department of Mathematics

Researcher List >> Atsushiba Sachiko
 

Atsushiba Sachiko

 
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NameAtsushiba Sachiko
URL
AffiliationTokyo Woman's Christian University
SectionSchool of Arts and Sciences, Division of Mathematical Sciences
Job titleProfessor
Degree修士（理学）(東京工業大学), 博士（理学）(東京工業大学)
Research funding number20327761
J-Global ID200901006828222097

Research Interests

 
最適化問題 ,凸解析学 ,非線形関数解析学 ,実函数論 ,不動点理論

Research Areas

 
  • Natural sciences / Basic analysis / 不動点理論

Research History

12>
 
Apr 2020
 - 
Today
Tokyo Woman's Christian University   
 
Apr 2012
 - 
Mar 2020
University of Yamanashi Graduate School of Education  
 
Apr 2008
 - 
Mar 2012
University of Yamanashi   
 
Apr 2007
 - 
Mar 2008
Shibaura Institute of Technology   
 
Apr 2005
 - 
Mar 2007
Shibaura Institute of Technology   
 

Education

 
Apr 1995
 - 
Mar 1998
Tokyo Institute of Technology Graduate School of Information Science and Engineering 
 
Apr 1993
 - 
Mar 1995
Tokyo Institute of Technology Graduate School of Science and Engineering 
 
Apr 1989
 - 
Mar 1993
Tokyo Institute of Technology School of Science 
 

Committee Memberships

 
Jan 2023
 - 
Today
日本数学会  日本数学会実函数論分科会実解析グループシンポジウム実行委員
 
Apr 1997
 - 
Today
The International Conference on Nonlinear Analysis and Convex Analysis  Local Organizing Committee
 

Papers

12345>
 
 
Weak convergence theorems for monotone nonexpansive semigroups
Atsushiba Sachiko   
Fixex Point Theory   = 1-12   Jun 2023   [Refereed]
 
Convergence theorems for finite families of monotone nonexpansive mappings
Sachiko Atsushiba   
Nonlinear Functional Analysis   2023    Jun 2023   
 
Convergence theorems for families of monotone Lipschitzian mappings in ordered Banach spaces
Sachiko Atsushiba   
RIMS Kokyuroku, Theory of function spaces and related topics   - 1-6   Mar 2023   
 
Attractive points, acute points and convergence theorems for families of nonlinear mappings
Sachiko Atsushiba   
RIMS Kokyuroku, Theory of function spaces and related topics   2250 124-134   Mar 2023   
 
Weak and strong convergence theorems for families of monotone nonexpansive mappings
Sachiko Atsushiba   
Proceedings on Real Analysis 2022   53 24-29   Mar 2023   

Misc.

12>
 
 
STRONG CONVERGENCE TO COMMON ATTRACTIVE POINTS OF ASYMPTOTICALLY REGULAR NONEXPANSIVE SEMIGROUPS (Nonlinear Analysis and Convex Analysis)
ATSUSHIBA SACHIKO   
RIMS Kokyuroku   1923 118-124   Nov 2014
 
STRONG CONVERGENCE THEOREMS FOR FAMILIES OF NONEXPANSIVE MAPPINGS BY BROWDER'S TYPE ITERATIONS (Mathematics for Uncertainty and Fuzziness)
ATSUSHIBA SACHIKO   
RIMS Kokyuroku   1906 24-33   Jul 2014
 
VISCOSITY APPROXIMATION METHODS FOR FIXED POINTS PROBLEMS (Nonlinear Analysis and Convex Analysis)
ATSUSHIBA SACHIKO   
RIMS Kokyuroku   1755 124-130   Aug 2011
 
WEAK AND STRONG CONVERGENCE THEOREMS FOR A FAMILY OF RELATIVELY NONEXPANSIVE MAPPINGS IN BANACH SPACES (Nonlinear Analysis and Convex Analysis)
ATSUSHIBA SACHIKO   
RIMS Kokyuroku   1611 67-75   Sep 2008
 
STRONG AND WEAK CONVERGENCE THEOREMS FOR A COUNTABLE FAMILY OF NONEXPANSIVE MAPPINGS IN BANACH SPACES(The structure of Banach spaces and Function spaces)
ATSUSHIBA SACHIKO   
RIMS Kokyuroku   1520 96-103   Oct 2006

Presentations

1234>
 
 
Sachiko Atsushiba   
MSJ Spring Meeting 2023   17 Mar 2023   MSJ   
 
Sachiko Atsushiba   
RIMS, Theory of function spaces and related topics   14 Feb 2023   Research Institute for Mathematical Sciences, Kyoto University   
 
Sachiko Atsushiba   
Symposium on Real Analysis2022   29 Oct 2022   MSJ   
 
Sachiko Atsushiba   
The 3rd International Workshop on Applied Nonlinear Analysisonal (IWANA2022, Thailand)（   5 Sep 2022   [Invited]
 
Sachiko Atsushiba   
RIMS, Study on Nonlinear Analysis and Convex Analysis   31 Aug 2022   Research Institute for Mathematical Sciences, Kyoto University   

Professional Memberships

 
May 1997
 - 
Today
日本数学会
Apr 1996
 - 
Today
国際数理科学協会

Research Projects

 
 
アトラクティブポイントを用いた不動点理論に基づく非線形関数解析・非線形問題の究明
日本学術振興会: 科学研究費助成事業
厚芝 幸子 
Project Year: Apr 2019 - Mar 2023
 
The study of nonlinear functional analysis and nonlinear problem based on fixed point theory and convex analysis, and its applications
Japan Society for the Promotion of Science: Grants-in-Aid for Scientific Research
ATSUSHIBA Sachiko SHIOJI Naoki 
Project Year: Apr 2014 - Mar 2018
 
Nonlinear Analysis and Convex Analysis by fixed point theory and its Application to Equilibrium problems and Nonlinear Optimization
Japan Society for the Promotion of Science: Grants-in-Aid for Scientific Research
ATSUSHIBA Sachiko HIRANO Norimichi 
Project Year: Apr 2010 - Mar 2014
 
Nonlinear Functional Analysis and Nonlinear Problem by Fixed Point Theory
Japan Society for the Promotion of Science: Grants-in-Aid for Scientific Research
ATSUSHIBA Sachiko 
Project Year: 2006 - 2008
 
不動点理論からの非線形問題の究明
日本学術振興会: 科学研究費助成事業
厚芝 幸子 
Project Year: 2004 - 2005

Social Activities

 
 
[Organizing member,Others]
 The International Conference on Nonlinear Analysis and Convex Analysis Apr 1997 - Today
 
[Lecturer]
東京女子大学 東京女子大学オープンキャンパス模擬授業 Aug 2022
 
[Lecturer]
東京女子大学 東京女子大学第11 回高等学校教科別セミナー Aug 2022

Response to the results of "Student Evaluation Survey"

 
 
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