Researcher Search Results Atsushiba Sachiko Atsushiba Sachiko (厚芝 幸子) Please select the form format to download from below 「Education and research environment」format 「No. 4, the Ministry of Education document style ①Outline for Vitae」format 「No. 4, the Ministry of Education document style ②Education and research environment」format Profile Information AffiliationProfessor, School of Arts and Sciences, Division of Mathematical Sciences, Tokyo Woman's Christian UniversityDegree修士(理学)(Mar, 1995, 東京工業大学)博士(理学)(Mar, 1998, 東京工業大学)Researcher number20327761J-GLOBAL ID200901006828222097researchmap Member ID1000366099 Research Interests 4 非線形解析学 非線形関数解析学 実函数論 不動点理論 Research Areas 1 Natural sciences / Basic analysis / 不動点理論 Research History 8 Apr, 2025 - Present 東京女子大学現代教養学部情報数理科学科情報数理科学専攻 教授 Apr, 2024 - Present 東京女子大学現代教養学部数理科学科情報数理科学専攻 教授 Apr, 2020 - Mar, 2024 Tokyo Woman's Christian University Apr, 2012 - Mar, 2020 Graduate School of Education, University of Yamanashi Apr, 2008 - Mar, 2012 University of Yamanashi More Education 3 Apr, 1995 - Mar, 1998 Graduate School of Information Science and Engineering, Tokyo Institute of Technology Apr, 1993 - Mar, 1995 Graduate School of Science and Engineering, Tokyo Institute of Technology Apr, 1989 - Mar, 1993 School of Science, Tokyo Institute of Technology Committee Memberships 2 Jan, 2023 - Present 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委員, 日本数学会 Apr, 1997 - Present Local Organizing Committee, The International Conference on Nonlinear Analysis and Convex Analysis Papers 97 Weak and strong convergence theorems for monotone nonexpansive-type mappings in Banach spaces Sachiko Atsushiba Nonlinear analysis and convex analysis, RIMS Kokyuroku, 2323(31) 1-8, Jul, 2025 InvitedLead authorCorresponding author Weak convergence theorems for a finite family of monotone nonexpansive mappings in Banach spaces Sachiko Atslushiba Fixed Point Theory, 26(2) 397-408, Feb, 2025 Peer-reviewedLead authorCorresponding author Weak convergence theorems for monotone generalized nonexpansive mappings in Banach spaces Sachiko Atsushiba Nonlinear Functional Analysis, 2025 Lead authorCorresponding author Weak and strong convergence theorems for nonexpansive semigroups in ordered Banach spaces Sachiko Atsushiba Nonlinear Functional Analisis and Applications, Mar, 2024 Lead authorCorresponding author Convergence theorems for monotone generalized nonexpansive mappings Sachiko Atsushiba 54 98-103, Jan, 2024 Lead authorCorresponding author Convergence theorems for families of monotone nonexpansive mappings in uniformly convex Banach spaces Sachiko Atslushiba Linear and Nonlinear Analysis, 9 175-186, Dec, 2023 Peer-reviewedLead authorLast authorCorresponding author Weak and strong convergence theorems for families of nonexpansive mappings in Banach spaces Sachiko Atslushiba 98 179-192, Sep, 2023 InvitedLead authorCorresponding author Convergence theorems for families of monotone Lipschitzian mappings in ordered Banach spaces Sachiko Atsushiba RIMS kokyuroku, Theory of function spaces and related topics, 2260 68-76, Jul, 2023 InvitedLead authorCorresponding author Weak convergence theorems for monotone nonexpansive semigroups Atsushiba Sachiko Fixex Point Theory, 1-12, Jun, 2023 Peer-reviewedLead authorCorresponding author Convergence theorems for finite families of monotone nonexpansive mappings Sachiko Atsushiba Nonlinear Functional Analysis, 2023, Jun, 2023 Lead authorCorresponding author 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 31, 2023 Lead authorCorresponding author Weak and strong convergence theorems for families of monotone nonexpansive mappings Sachiko Atsushiba Proceedings on Real Analysis 2022, 53 24-29, Mar 30, 2023 Lead authorCorresponding author Convergence theorems for families of monotone Lipschitzian mappings in ordered Banach spaces Sachiko Atsushiba RIMS kokyuroku, Theory of function spaces and related topics, 2260 68-76, 2023 Lead authorLast authorCorresponding author Convergence theorems for families of monotone nonexpansive mappings Sachiko Atsushiba RIMS Kokyuroku, Study on Nonlinear Analysis and Convex Analysis, 2240 5,1-8, Jan, 2023 InvitedLead author Convergence theorems for monotone nonexpansive mappings in Banach spaces Sachiko Atsushiba Linear and Nonlinear Analysis, 8 155-162, Dec, 2022 Peer-reviewedLead author Weak and strong convergence theorems for monotone nonexpansive mappings Sachiko Atsushiba RIMS Kokyuroku, Study on Nonlinear Analysis and Convex Analysis, 2214 21,1-6, Jul 1, 2022 Lead authorCorresponding author NONLINEAR ERGODIC THEOREMS FOR NORMALLY 2-GENERALIZED HYBRID SEQUENCES Atsushiba Sachiko Journal of Nonlinear and Convex Analysis, 20(2) 251-264, Feb, 2019 Peer-reviewed Attractive point and convergence theorems for hybrid-type sequences Sachiko Atsushiba (Nonlinear analysis and con-vex analysis), RIMS Kokyuroku,, 2112, 2019 Invited Convergence theorems for generalized hybrid-type sequences and some nonlinear mappings Sachiko Atsushiba RIMS Kokyuroku, to appear, 2019 Approximation of attractive points of nonlinear mappings, --Common attractive poits, common acute poit, common fixed points and convergence theorems-- Sachiko Atsushiba Nonlinear analysis and con-vex analysis, RIMS Kokyuroku, to appear, 2019 Fixed point and convergence theorems for generalized hybrid-type mapping Atsushiba Sachiko Nonlinear Functional Analysis and Applications, to appear, 2019 Peer-reviewed Convergence theorems of iterative sequences for nonlinear operators Sachiko Atsushiba RIMS Kokyuroku, 2095 106-113, Dec, 2018 Invited Common acute points and convergence theorems for families of nonlinear mappings Sachiko Atsushiba Nonlinear analysis and con-vex analysis, RIMS Kokyuroku,, 2065 100-110, 2018 Invited Weak and strong convergence theorems for some classes of nonlinear mappings Sachiko Atsushiba, Shigeru Iemoto, Rieko Kubota, Yikio Takeuchi Josai Mathematical Monograph,, 11 97-104, 2018 Peer-reviewed Attractive points, acute points and approximation of common fixed points of families of nonlinear mappings related to hybrid mappings Sachiko Atsushiba RIMS Kokyuroku, 2041(2041) 38-47, 2017 Attractive points, fixed points and convergence Theorems for some classes of nonlinear mappings Sachiko Atsushiba Proceeddings of ths symposium on Real Analysis, 2017 41-46, 2017 Invited Acute points, weak and strong convergence theorems for nonlinear mappings in Hilbert spaces, Sachiko Atsushiba RIMS Kokyuroku, 2011(2011) 100-104, 2016 Attractive points, acute points and approximation of fixed points of nonlinear mappings Sachiko Atsushiba Proceeddings of ths symposium on Real Analysis 2017, 2016 41-46, 2016 Strong convergence to common attractive points for nonexpansive semigroups by Halpern’s type iterations Sachiko Atsushiba Nonlinear Analysis and Convex Analysis, 9 41-52, 2016 Peer-reviewed Convergence theorems for some classes of nonlinear mappings in Hilbert spaces Sachiko Atsushiba, Shigeru Iemoto, Rieko Kubota, Yikio Takeuchi Linear and Nonlinear Analysis,, 2 125-153, 2016 Peer-reviewedLead author Strong convergence theorems for asymptotically regular nonexpansive semigroups by Some iterations Sachiko Atsushiba Nonlinear analysis and con-vex analysis, RIMS Kokyuroku, 1963 150-161, 2015 Strong convergence theorems for nonexpansive semigroups by Halpern's type iterations, Sachiko Atsushiba Nonlinear Analysis and Convex Analysis, 8 57-68, 2015 Peer-reviewed Strong convergence theorems for uniformly asymptotically regular nonexpansive semigroups in Banach spaces, Sachiko Atsushiba Banach and Functions Spaces, 6 275-288, 2015 Peer-reviewed STRONG CONVERGENCE TO COMMON ATTRACTIVE POINTS OF UNIFORMLY ASYMPTOTICALLY REGULAR NONEXPANSIVE SEMIGROUPS Sachiko Atsushiba JOURNAL OF NONLINEAR AND CONVEX ANALYSIS, 16(1) 69-78, 2015 Peer-reviewed Strong Convergence to Common Attractive points of Asymptotically Regular Nonexpansive Semigroups Sachiko Atsushiba Mathematics for Uncertainty and Fuzziness, RIMS Kokyuroku, 1906 24-33, 2014 Strong convergence theorems for asymptotically regular nonexpansive semigroups by Some iterations Sachiko Atsushiba Nonlinear analysis and con-vex analysis, RIMS Kokyuroku, 1923 118-124, 2014 Strong convergence theorems for nonexpansive semigroups by Browder's type iterations Sachiko Atsushiba Nonlinear Analysis and Optimizatio, 3 23-34, 2014 Peer-reviewed Weak and strong convergence theorems for uniformly asymptotically regular nonexpansive semigroups Sachiko Atsushiba Nonlinear analysis and con-vex analysis, RIMS Kokyuroku, 1821 115-122, 2013 Browder's Convergence for Uniformly Asymptotically Regular Nonexpansive Semigroups in Banach spaces Sachiko Atsushiba Nonlinear analysis and con-vex analysis, RIMS Kokyuroku, 1841 35-41, 2013 Strong Convergence Theorems for Uniformly Asymptotically Regular Nonexpansive Semigroups in Banach spaces, Sachiko Atsushiba Banach and Function Spaces, 4 275-288, 2013 Peer-reviewed NONLINEAR ERGODIC THEOREMS WITHOUT CONVEXITY FOR NONEXPANSIVE SEMIGROUPS IN HILBERT SPACES Sachiko Atsushiba, Wataru Takahashi JOURNAL OF NONLINEAR AND CONVEX ANALYSIS, 14(2) 209-219, 2013 Peer-reviewed Strong convergence theorems for uniformly asymptotically regular nonexpansive semigroups by Browder’s type iterations Sachiko Atsushiba Nonlinear Analysis and Convex Analysis, 7 11-19, 2012 Peer-reviewed A Viscosity of Cesaro Mean Approximation Methods for a Mixed Equilibrium, Variational Inequalities, and Fixed Point Problems Thanyarat Jitpeera, Phayap Katchang, Poom Kumam FIXED POINT THEORY AND APPLICATIONS, 1755 124-130, 2011 Viscosity approximation methods for families of strictly pseudo contractive mapings and nonself nonexpansive mappings Sachiko Atsushiba バナッハ空間論の研究とその周辺, RIMS Kokyuroku, 1753, (2011), 82--89, 1753 82-89, 2011 On the approximating common fixed points and the existence of the common fixed points of nonexpansive semigroups, Sachiko Atsushiba Banach and Function Spaces, 3 351-365, 2011 Peer-reviewed あるハイブリッドタイプの点列と非拡大写像の不動点の存在について, Sachiko Atsushiba 非加法の数理と情報:凸解析との接点, RIMS Kokyuroku, 1683 78-83, 2010 Existence of common fixed point and strong convergence theorems for nonexpansive semigroup by hybrid type method Sachiko Atsushiba Nonlinear analysis and convex analysis, RIMS Kokyuroku, 1685 138-148, 2010 On the Approximated Sequences and the Existence of Fixed Points of Nonlinear Mappings Sachiko Atsushiba Proceedings of symposium on real analysis 2010, 42 67-70, 2010 On the Sequences by the Hybrid Type Method and the Existence of Common Fixed Points of Families of Nonexpansive Mappings Sachiko Atsushiba Nonlinear analysis and convex analysis, RIMS Kokyuroku, 1643 94-103, 2009 The Sequences by the Hybrid Type Method and the Existence of Common Fixed Points of Nonexpansive Semigroups in a Hilbert Space, Sachiko Atsushiba, Wataru Takahashi Nonlinear Analysis and Optimization, 2009 19-29, 2009 Peer-reviewed 12» Misc. 6 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 More Presentations 27 Convergence theorems for monotone generalized nonexpansive mappings in Banach spaces Sachiko Atsushiba Asian Mathematical Conference 2025 (AMC2025), Aug 4, 2025 Approximation of fixed points of monotone nonexpansive-type mappings Sachiko Atsushiba Mar 19, 2024 Convergence theorems for monotone generalized nonexpansive mappings Sachiko Atsushiba The synmposium on Real Analysis, Oct 29, 2023 Attractive points, fixed points and convergence theorems for monotone Lipschitzian mappings Sachiko Atsushiba Sep 22, 2023 Attractive points and weak convergence theorems for monotone nonexpansive mappings Sachiko Atsushiba The 11th Asian Conference on Fixed Point Theory and Optimization 2023 (ACFPTO2023), Aug 3, 2023 More Professional Memberships 2 May, 1997 - Present 日本数学会 Apr, 1996 - Present 国際数理科学協会 Research Projects 6 Theory of fixed point problems via attractive points and monotonic nonexpansive mappings and its applications Apr, 2025 - Mar, 2030 Sachiko Atsushiba 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 科学研究費助成事業, 日本学術振興会, Apr, 2019 - Mar, 2025 厚芝 幸子 The study of nonlinear functional analysis and nonlinear problem based on fixed point theory and convex analysis, and its applications Grants-in-Aid for Scientific Research, Japan Society for the Promotion of Science, Apr, 2014 - Mar, 2018 ATSUSHIBA Sachiko, SHIOJI Naoki Nonlinear Analysis and Convex Analysis by fixed point theory and its Application to Equilibrium problems and Nonlinear Optimization Grants-in-Aid for Scientific Research, Japan Society for the Promotion of Science, Apr, 2010 - Mar, 2014 ATSUSHIBA Sachiko, HIRANO Norimichi Nonlinear Functional Analysis and Nonlinear Problem by Fixed Point Theory Grants-in-Aid for Scientific Research, Japan Society for the Promotion of Science, 2006 - 2008 ATSUSHIBA Sachiko More Academic Activities 5 実解析学シンポジウム開催責任者 Planning, Management, etc., Others Feb 15, 2025 - Present 日本数学会実函数論分科会函数解析学分科会合同シンポジウム連絡委員 Planning, Management, etc., Others Feb 15, 2025 - Present 日本数学会実函数論分科会函数解析学分科会合同シンポジウム委員 Planning, Management, etc. Apr, 2023 - Present 実解析学シンポジウム開催責任者 Planning, Management, etc., Others Mar 1, 2024 - Mar 31, 2025 実解析学シンポジウム開催責任者 Planning, Management, etc., Others Mar 1, 2023 - Mar 31, 2024 Social Activities 5 The International Conference on Nonlinear Analysis and Convex Analysis でLocal Organizing Committee Logistic support, Others The International Conference on Nonlinear Analysis and Convex Analysis, Apr, 1997 - Present 東京女子大学 「問いプロジェクト-TONJO QUESTION」 動画 Panelist, Commentator, Filming support Jan 15, 2025 - Mar 20, 2025 東京女子大学オープンキャンパス模擬授業「不動点とは何か?何に使われているか? --現代解析学入門-- Lecturer, Consultant Jul 7, 2024 - Jul 7, 2024 東京女子大学オープンキャンパス模擬授業「不動点とは何か?何に使われているか? 不 動点を身近なところから考える」 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 東京女子大学第11 回高等学校教科別セミナー「非線形解析に関する一考察―不動点と は? 不動点を介した考察―」 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 広報活動等 4 件名(英語) 東京女子大学第11 回高等学校教科別セミナー「非線形解析に関する一考察―不動点と は? 不動点を介した考察―」で講師 2022/08/23 2022/08/23 東京女子大学第11 回高等学校教科別セミナー「非線形解析に関する一考察―不動点と は? 不動点を介した考察―」で講師をした。 件名(英語) 東京女子大学オープンキャンパス模擬授業「不動点とは何か?何に使われているか? 不 動点を身近なところから考える」 で講師をした 2022/08/07 2022/08/07 東京女子大学オープンキャンパス模擬授業「不動点とは何か?何に使われているか? 不 動点を身近なところから考える」 で講師および個別相談をした 件名(英語) 東京女子大学オープンキャンパス模擬授業「不動点とは何か?何に使われているか? --現代解析学入門--」 で講師をした 2024/07/07 2024/07/07 東京女子大学オープンキャンパス模擬授業「不動点とは何か?何に使われているか? --現代解析学入門-- で講師をした 件名(英語) 東京女子大学問プロジェクト動画 2024/01/10 東京女子大学「問いプロジェクト-TONJO QUESTION-」動画に出演しパネリスト的役割で話をした。 1
Atsushiba Sachiko (厚芝 幸子) Please select the form format to download from below 「Education and research environment」format 「No. 4, the Ministry of Education document style ①Outline for Vitae」format 「No. 4, the Ministry of Education document style ②Education and research environment」format Profile Information AffiliationProfessor, School of Arts and Sciences, Division of Mathematical Sciences, Tokyo Woman's Christian UniversityDegree修士(理学)(Mar, 1995, 東京工業大学)博士(理学)(Mar, 1998, 東京工業大学)Researcher number20327761J-GLOBAL ID200901006828222097researchmap Member ID1000366099 Research Interests 4 非線形解析学 非線形関数解析学 実函数論 不動点理論 Research Areas 1 Natural sciences / Basic analysis / 不動点理論 Research History 8 Apr, 2025 - Present 東京女子大学現代教養学部情報数理科学科情報数理科学専攻 教授 Apr, 2024 - Present 東京女子大学現代教養学部数理科学科情報数理科学専攻 教授 Apr, 2020 - Mar, 2024 Tokyo Woman's Christian University Apr, 2012 - Mar, 2020 Graduate School of Education, University of Yamanashi Apr, 2008 - Mar, 2012 University of Yamanashi More Education 3 Apr, 1995 - Mar, 1998 Graduate School of Information Science and Engineering, Tokyo Institute of Technology Apr, 1993 - Mar, 1995 Graduate School of Science and Engineering, Tokyo Institute of Technology Apr, 1989 - Mar, 1993 School of Science, Tokyo Institute of Technology Committee Memberships 2 Jan, 2023 - Present 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委員, 日本数学会 Apr, 1997 - Present Local Organizing Committee, The International Conference on Nonlinear Analysis and Convex Analysis Papers 97 Weak and strong convergence theorems for monotone nonexpansive-type mappings in Banach spaces Sachiko Atsushiba Nonlinear analysis and convex analysis, RIMS Kokyuroku, 2323(31) 1-8, Jul, 2025 InvitedLead authorCorresponding author Weak convergence theorems for a finite family of monotone nonexpansive mappings in Banach spaces Sachiko Atslushiba Fixed Point Theory, 26(2) 397-408, Feb, 2025 Peer-reviewedLead authorCorresponding author Weak convergence theorems for monotone generalized nonexpansive mappings in Banach spaces Sachiko Atsushiba Nonlinear Functional Analysis, 2025 Lead authorCorresponding author Weak and strong convergence theorems for nonexpansive semigroups in ordered Banach spaces Sachiko Atsushiba Nonlinear Functional Analisis and Applications, Mar, 2024 Lead authorCorresponding author Convergence theorems for monotone generalized nonexpansive mappings Sachiko Atsushiba 54 98-103, Jan, 2024 Lead authorCorresponding author Convergence theorems for families of monotone nonexpansive mappings in uniformly convex Banach spaces Sachiko Atslushiba Linear and Nonlinear Analysis, 9 175-186, Dec, 2023 Peer-reviewedLead authorLast authorCorresponding author Weak and strong convergence theorems for families of nonexpansive mappings in Banach spaces Sachiko Atslushiba 98 179-192, Sep, 2023 InvitedLead authorCorresponding author Convergence theorems for families of monotone Lipschitzian mappings in ordered Banach spaces Sachiko Atsushiba RIMS kokyuroku, Theory of function spaces and related topics, 2260 68-76, Jul, 2023 InvitedLead authorCorresponding author Weak convergence theorems for monotone nonexpansive semigroups Atsushiba Sachiko Fixex Point Theory, 1-12, Jun, 2023 Peer-reviewedLead authorCorresponding author Convergence theorems for finite families of monotone nonexpansive mappings Sachiko Atsushiba Nonlinear Functional Analysis, 2023, Jun, 2023 Lead authorCorresponding author 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 31, 2023 Lead authorCorresponding author Weak and strong convergence theorems for families of monotone nonexpansive mappings Sachiko Atsushiba Proceedings on Real Analysis 2022, 53 24-29, Mar 30, 2023 Lead authorCorresponding author Convergence theorems for families of monotone Lipschitzian mappings in ordered Banach spaces Sachiko Atsushiba RIMS kokyuroku, Theory of function spaces and related topics, 2260 68-76, 2023 Lead authorLast authorCorresponding author Convergence theorems for families of monotone nonexpansive mappings Sachiko Atsushiba RIMS Kokyuroku, Study on Nonlinear Analysis and Convex Analysis, 2240 5,1-8, Jan, 2023 InvitedLead author Convergence theorems for monotone nonexpansive mappings in Banach spaces Sachiko Atsushiba Linear and Nonlinear Analysis, 8 155-162, Dec, 2022 Peer-reviewedLead author Weak and strong convergence theorems for monotone nonexpansive mappings Sachiko Atsushiba RIMS Kokyuroku, Study on Nonlinear Analysis and Convex Analysis, 2214 21,1-6, Jul 1, 2022 Lead authorCorresponding author NONLINEAR ERGODIC THEOREMS FOR NORMALLY 2-GENERALIZED HYBRID SEQUENCES Atsushiba Sachiko Journal of Nonlinear and Convex Analysis, 20(2) 251-264, Feb, 2019 Peer-reviewed Attractive point and convergence theorems for hybrid-type sequences Sachiko Atsushiba (Nonlinear analysis and con-vex analysis), RIMS Kokyuroku,, 2112, 2019 Invited Convergence theorems for generalized hybrid-type sequences and some nonlinear mappings Sachiko Atsushiba RIMS Kokyuroku, to appear, 2019 Approximation of attractive points of nonlinear mappings, --Common attractive poits, common acute poit, common fixed points and convergence theorems-- Sachiko Atsushiba Nonlinear analysis and con-vex analysis, RIMS Kokyuroku, to appear, 2019 Fixed point and convergence theorems for generalized hybrid-type mapping Atsushiba Sachiko Nonlinear Functional Analysis and Applications, to appear, 2019 Peer-reviewed Convergence theorems of iterative sequences for nonlinear operators Sachiko Atsushiba RIMS Kokyuroku, 2095 106-113, Dec, 2018 Invited Common acute points and convergence theorems for families of nonlinear mappings Sachiko Atsushiba Nonlinear analysis and con-vex analysis, RIMS Kokyuroku,, 2065 100-110, 2018 Invited Weak and strong convergence theorems for some classes of nonlinear mappings Sachiko Atsushiba, Shigeru Iemoto, Rieko Kubota, Yikio Takeuchi Josai Mathematical Monograph,, 11 97-104, 2018 Peer-reviewed Attractive points, acute points and approximation of common fixed points of families of nonlinear mappings related to hybrid mappings Sachiko Atsushiba RIMS Kokyuroku, 2041(2041) 38-47, 2017 Attractive points, fixed points and convergence Theorems for some classes of nonlinear mappings Sachiko Atsushiba Proceeddings of ths symposium on Real Analysis, 2017 41-46, 2017 Invited Acute points, weak and strong convergence theorems for nonlinear mappings in Hilbert spaces, Sachiko Atsushiba RIMS Kokyuroku, 2011(2011) 100-104, 2016 Attractive points, acute points and approximation of fixed points of nonlinear mappings Sachiko Atsushiba Proceeddings of ths symposium on Real Analysis 2017, 2016 41-46, 2016 Strong convergence to common attractive points for nonexpansive semigroups by Halpern’s type iterations Sachiko Atsushiba Nonlinear Analysis and Convex Analysis, 9 41-52, 2016 Peer-reviewed Convergence theorems for some classes of nonlinear mappings in Hilbert spaces Sachiko Atsushiba, Shigeru Iemoto, Rieko Kubota, Yikio Takeuchi Linear and Nonlinear Analysis,, 2 125-153, 2016 Peer-reviewedLead author Strong convergence theorems for asymptotically regular nonexpansive semigroups by Some iterations Sachiko Atsushiba Nonlinear analysis and con-vex analysis, RIMS Kokyuroku, 1963 150-161, 2015 Strong convergence theorems for nonexpansive semigroups by Halpern's type iterations, Sachiko Atsushiba Nonlinear Analysis and Convex Analysis, 8 57-68, 2015 Peer-reviewed Strong convergence theorems for uniformly asymptotically regular nonexpansive semigroups in Banach spaces, Sachiko Atsushiba Banach and Functions Spaces, 6 275-288, 2015 Peer-reviewed STRONG CONVERGENCE TO COMMON ATTRACTIVE POINTS OF UNIFORMLY ASYMPTOTICALLY REGULAR NONEXPANSIVE SEMIGROUPS Sachiko Atsushiba JOURNAL OF NONLINEAR AND CONVEX ANALYSIS, 16(1) 69-78, 2015 Peer-reviewed Strong Convergence to Common Attractive points of Asymptotically Regular Nonexpansive Semigroups Sachiko Atsushiba Mathematics for Uncertainty and Fuzziness, RIMS Kokyuroku, 1906 24-33, 2014 Strong convergence theorems for asymptotically regular nonexpansive semigroups by Some iterations Sachiko Atsushiba Nonlinear analysis and con-vex analysis, RIMS Kokyuroku, 1923 118-124, 2014 Strong convergence theorems for nonexpansive semigroups by Browder's type iterations Sachiko Atsushiba Nonlinear Analysis and Optimizatio, 3 23-34, 2014 Peer-reviewed Weak and strong convergence theorems for uniformly asymptotically regular nonexpansive semigroups Sachiko Atsushiba Nonlinear analysis and con-vex analysis, RIMS Kokyuroku, 1821 115-122, 2013 Browder's Convergence for Uniformly Asymptotically Regular Nonexpansive Semigroups in Banach spaces Sachiko Atsushiba Nonlinear analysis and con-vex analysis, RIMS Kokyuroku, 1841 35-41, 2013 Strong Convergence Theorems for Uniformly Asymptotically Regular Nonexpansive Semigroups in Banach spaces, Sachiko Atsushiba Banach and Function Spaces, 4 275-288, 2013 Peer-reviewed NONLINEAR ERGODIC THEOREMS WITHOUT CONVEXITY FOR NONEXPANSIVE SEMIGROUPS IN HILBERT SPACES Sachiko Atsushiba, Wataru Takahashi JOURNAL OF NONLINEAR AND CONVEX ANALYSIS, 14(2) 209-219, 2013 Peer-reviewed Strong convergence theorems for uniformly asymptotically regular nonexpansive semigroups by Browder’s type iterations Sachiko Atsushiba Nonlinear Analysis and Convex Analysis, 7 11-19, 2012 Peer-reviewed A Viscosity of Cesaro Mean Approximation Methods for a Mixed Equilibrium, Variational Inequalities, and Fixed Point Problems Thanyarat Jitpeera, Phayap Katchang, Poom Kumam FIXED POINT THEORY AND APPLICATIONS, 1755 124-130, 2011 Viscosity approximation methods for families of strictly pseudo contractive mapings and nonself nonexpansive mappings Sachiko Atsushiba バナッハ空間論の研究とその周辺, RIMS Kokyuroku, 1753, (2011), 82--89, 1753 82-89, 2011 On the approximating common fixed points and the existence of the common fixed points of nonexpansive semigroups, Sachiko Atsushiba Banach and Function Spaces, 3 351-365, 2011 Peer-reviewed あるハイブリッドタイプの点列と非拡大写像の不動点の存在について, Sachiko Atsushiba 非加法の数理と情報:凸解析との接点, RIMS Kokyuroku, 1683 78-83, 2010 Existence of common fixed point and strong convergence theorems for nonexpansive semigroup by hybrid type method Sachiko Atsushiba Nonlinear analysis and convex analysis, RIMS Kokyuroku, 1685 138-148, 2010 On the Approximated Sequences and the Existence of Fixed Points of Nonlinear Mappings Sachiko Atsushiba Proceedings of symposium on real analysis 2010, 42 67-70, 2010 On the Sequences by the Hybrid Type Method and the Existence of Common Fixed Points of Families of Nonexpansive Mappings Sachiko Atsushiba Nonlinear analysis and convex analysis, RIMS Kokyuroku, 1643 94-103, 2009 The Sequences by the Hybrid Type Method and the Existence of Common Fixed Points of Nonexpansive Semigroups in a Hilbert Space, Sachiko Atsushiba, Wataru Takahashi Nonlinear Analysis and Optimization, 2009 19-29, 2009 Peer-reviewed 12» Misc. 6 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 More Presentations 27 Convergence theorems for monotone generalized nonexpansive mappings in Banach spaces Sachiko Atsushiba Asian Mathematical Conference 2025 (AMC2025), Aug 4, 2025 Approximation of fixed points of monotone nonexpansive-type mappings Sachiko Atsushiba Mar 19, 2024 Convergence theorems for monotone generalized nonexpansive mappings Sachiko Atsushiba The synmposium on Real Analysis, Oct 29, 2023 Attractive points, fixed points and convergence theorems for monotone Lipschitzian mappings Sachiko Atsushiba Sep 22, 2023 Attractive points and weak convergence theorems for monotone nonexpansive mappings Sachiko Atsushiba The 11th Asian Conference on Fixed Point Theory and Optimization 2023 (ACFPTO2023), Aug 3, 2023 More Professional Memberships 2 May, 1997 - Present 日本数学会 Apr, 1996 - Present 国際数理科学協会 Research Projects 6 Theory of fixed point problems via attractive points and monotonic nonexpansive mappings and its applications Apr, 2025 - Mar, 2030 Sachiko Atsushiba 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 科学研究費助成事業, 日本学術振興会, Apr, 2019 - Mar, 2025 厚芝 幸子 The study of nonlinear functional analysis and nonlinear problem based on fixed point theory and convex analysis, and its applications Grants-in-Aid for Scientific Research, Japan Society for the Promotion of Science, Apr, 2014 - Mar, 2018 ATSUSHIBA Sachiko, SHIOJI Naoki Nonlinear Analysis and Convex Analysis by fixed point theory and its Application to Equilibrium problems and Nonlinear Optimization Grants-in-Aid for Scientific Research, Japan Society for the Promotion of Science, Apr, 2010 - Mar, 2014 ATSUSHIBA Sachiko, HIRANO Norimichi Nonlinear Functional Analysis and Nonlinear Problem by Fixed Point Theory Grants-in-Aid for Scientific Research, Japan Society for the Promotion of Science, 2006 - 2008 ATSUSHIBA Sachiko More Academic Activities 5 実解析学シンポジウム開催責任者 Planning, Management, etc., Others Feb 15, 2025 - Present 日本数学会実函数論分科会函数解析学分科会合同シンポジウム連絡委員 Planning, Management, etc., Others Feb 15, 2025 - Present 日本数学会実函数論分科会函数解析学分科会合同シンポジウム委員 Planning, Management, etc. Apr, 2023 - Present 実解析学シンポジウム開催責任者 Planning, Management, etc., Others Mar 1, 2024 - Mar 31, 2025 実解析学シンポジウム開催責任者 Planning, Management, etc., Others Mar 1, 2023 - Mar 31, 2024 Social Activities 5 The International Conference on Nonlinear Analysis and Convex Analysis でLocal Organizing Committee Logistic support, Others The International Conference on Nonlinear Analysis and Convex Analysis, Apr, 1997 - Present 東京女子大学 「問いプロジェクト-TONJO QUESTION」 動画 Panelist, Commentator, Filming support Jan 15, 2025 - Mar 20, 2025 東京女子大学オープンキャンパス模擬授業「不動点とは何か?何に使われているか? --現代解析学入門-- Lecturer, Consultant Jul 7, 2024 - Jul 7, 2024 東京女子大学オープンキャンパス模擬授業「不動点とは何か?何に使われているか? 不 動点を身近なところから考える」 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 東京女子大学第11 回高等学校教科別セミナー「非線形解析に関する一考察―不動点と は? 不動点を介した考察―」 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 広報活動等 4 件名(英語) 東京女子大学第11 回高等学校教科別セミナー「非線形解析に関する一考察―不動点と は? 不動点を介した考察―」で講師 2022/08/23 2022/08/23 東京女子大学第11 回高等学校教科別セミナー「非線形解析に関する一考察―不動点と は? 不動点を介した考察―」で講師をした。 件名(英語) 東京女子大学オープンキャンパス模擬授業「不動点とは何か?何に使われているか? 不 動点を身近なところから考える」 で講師をした 2022/08/07 2022/08/07 東京女子大学オープンキャンパス模擬授業「不動点とは何か?何に使われているか? 不 動点を身近なところから考える」 で講師および個別相談をした 件名(英語) 東京女子大学オープンキャンパス模擬授業「不動点とは何か?何に使われているか? --現代解析学入門--」 で講師をした 2024/07/07 2024/07/07 東京女子大学オープンキャンパス模擬授業「不動点とは何か?何に使われているか? --現代解析学入門-- で講師をした 件名(英語) 東京女子大学問プロジェクト動画 2024/01/10 東京女子大学「問いプロジェクト-TONJO QUESTION-」動画に出演しパネリスト的役割で話をした。 1