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Study on preserver problems on Banach algebras and gyro-structure

Research Project

Project/Area Number 16K05172
Research Category

Grant-in-Aid for Scientific Research (C)

Allocation TypeMulti-year Fund
Section一般
Research Field Basic analysis
Research InstitutionNiigata University

Principal Investigator

Hatori Osamu  新潟大学, 自然科学系, 教授 (70156363)

Co-Investigator(Kenkyū-buntansha) 三浦 毅  新潟大学, 自然科学系, 教授 (90333989)
阿部 敏一  茨城大学, 理工学研究科(工学野), 助教 (40749157)
Research Collaborator Lajos Molnar  
Project Period (FY) 2016-04-01 – 2019-03-31
Project Status Completed (Fiscal Year 2018)
Budget Amount *help
¥4,420,000 (Direct Cost: ¥3,400,000、Indirect Cost: ¥1,020,000)
Fiscal Year 2018: ¥1,560,000 (Direct Cost: ¥1,200,000、Indirect Cost: ¥360,000)
Fiscal Year 2017: ¥1,300,000 (Direct Cost: ¥1,000,000、Indirect Cost: ¥300,000)
Fiscal Year 2016: ¥1,560,000 (Direct Cost: ¥1,200,000、Indirect Cost: ¥360,000)
Keywords等距離写像 / ジャイロ空間 / バナッハ環 / リプシッツ環 / 一般ジャイロ空間 / ジャイロ構造 / ジャイロ群 / C*環 / 保存問題
Outline of Final Research Achievements

We prove a certain substructure of a unital C*-algebra has a generalized gyro structure. Applying it, we exhibit the form of surjective isometries. We studied the old conjecture of Rao and Roy in 70's on isometries on Banach algebras of Lipschitz maps on compact metric spaces. Finally we succeeded to prove a result which contains the conjecture. We studied isometries on the space of Lipschitz maps and the space of continuously differentiable maps. We exhibit the form of surjective isometries on these spaces with respect several type of norms. We showed the form of Hermitian operators on a Banach space of the tensor product of a function algebra and C*-algeberas. Applying it we exhibit the form of surjective isometries on such Banach spaces.

Academic Significance and Societal Importance of the Research Achievements

等距離写像は1932年のバナッハの研究以来盛んに研究されてきた。各種のバナッハ環やバナッハ空間の間の等距離写像が決定される中で,バナッハ環の等距離写像の研究において,リプシッツ環に対するRao-Royの予想の解決は40年以上の長年の課題であった。これを肯定的に解決できたことは,今後のこの分野の発展に大きく寄与すると期待できる。ジャイロ構造の研究はそれ自身でも興味がある対象であるが,それを用いた等距離写像の研究が進展したことはこの分野で特筆される。バナッハ空間のテンソル積の間の等距離写像の研究はまだ未開拓の部分も多く,今後の発展が期待されている。

Report

(4 results)
  • 2018 Annual Research Report   Final Research Report ( PDF )
  • 2017 Research-status Report
  • 2016 Research-status Report
  • Research Products

    (88 results)

All 2019 2018 2017 2016 Other

All Int'l Joint Research (4 results) Journal Article (21 results) (of which Int'l Joint Research: 1 results,  Peer Reviewed: 21 results,  Acknowledgement Compliant: 2 results,  Open Access: 1 results) Presentation (62 results) (of which Int'l Joint Research: 17 results,  Invited: 22 results) Funded Workshop (1 results)

  • [Int'l Joint Research] University of Szeged(ハンガリー)

    • Related Report
      2018 Annual Research Report
  • [Int'l Joint Research] University of Granada/University of Almeria(スペイン)

    • Related Report
      2018 Annual Research Report
  • [Int'l Joint Research] University of Szeged(Hungary)

    • Related Report
      2016 Research-status Report
  • [Int'l Joint Research] University of Memphis(米国)

    • Related Report
      2016 Research-status Report
  • [Journal Article] Hermitian operators and isometries on injective tensor products of uniform algebras and C*-algebras2019

    • Author(s)
      Osamu Hatori, Kazuhiro Kawamura and Shiho Oi
    • Journal Title

      Journal of Mathematical Analysis and Its Applications

      Volume: 472

    • Related Report
      2018 Annual Research Report
    • Peer Reviewed
  • [Journal Article] 2-local isometreis on function spaces2019

    • Author(s)
      Osamu Hatori and Shiho Oi
    • Journal Title

      Contemporary Mathematics

      Volume: 印刷中

    • Related Report
      2018 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Peculiar homomorphisms on algebras of vector valued maps2018

    • Author(s)
      Osamu Hatori, Shiho Oi and Hiroyuki Takagi
    • Journal Title

      Studia Mathematica

      Volume: 242 Issue: 2 Pages: 141-163

    • DOI

      10.4064/sm8799-6-2017

    • Description
      Publish online
    • Related Report
      2018 Annual Research Report 2017 Research-status Report
    • Peer Reviewed
  • [Journal Article] Isometries on Banach algebras of vector-valued maps2018

    • Author(s)
      O. Hatori and S. Oi
    • Journal Title

      Acta Sci. Math.

      Volume: 84 Issue: 1-2 Pages: 151-183

    • DOI

      10.14232/actasm-017-558-6

    • Related Report
      2018 Annual Research Report 2017 Research-status Report
    • Peer Reviewed
  • [Journal Article] Hermitian operators and isometries on Banach algebras of continuous maps with values in a unital commutative C*-algebra,2018

    • Author(s)
      O. Hatori
    • Journal Title

      J. Function Spaces

      Volume: 2018 Pages: 14-14

    • DOI

      10.1155/2018/8085304

    • Related Report
      2018 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Norms on C^1([0,1]) and their isometries2018

    • Author(s)
      Kazuhiro Kawamura, Hironao Koshimizu and Takeshi Miura
    • Journal Title

      Acta Sci. Math. (Szeged)

      Volume: 84

    • Related Report
      2018 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Surjective isometries on a Banach of analytic functions on the open unit disc2018

    • Author(s)
      Takeshi Miura and Norio Niwa
    • Journal Title

      Nihonkai Mathematical Journal

      Volume: 29

    • Related Report
      2018 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Norms on C^1([0,1]) and their isometries2018

    • Author(s)
      Kazuhiro Kawamura, Hironao Koshimizu and Takeshi Miura
    • Journal Title

      Acta Scientiarum Mathematicarum

      Volume: 掲載決定

    • Related Report
      2017 Research-status Report
    • Peer Reviewed
  • [Journal Article] Hermitian operators on Banach algebras of vector-valued Lipschitz maps2017

    • Author(s)
      Osamu Hatori and Shiho Oi
    • Journal Title

      Journal of Mathematical Analysis and its Applications

      Volume: 452 Issue: 1 Pages: 378-387

    • DOI

      10.1016/j.jmaa.2017.03.015

    • Related Report
      2017 Research-status Report 2016 Research-status Report
    • Peer Reviewed
  • [Journal Article] Corrigendum to "Hermitian operators on Banach algebras of vector-valued Lipschitz maps" [J. Math. Anal. Appl. vol.452 (2017), 378--387, DOI : 10.1016/j.jmaa.2017.03.015]2017

    • Author(s)
      Osamu Hatori and Shiho Oi
    • Journal Title

      Journal of Mathematical Analysis and Applications

      Volume: 453 Issue: 2 Pages: 1151-1152

    • DOI

      10.1016/j.jmaa.2017.04.058

    • Related Report
      2017 Research-status Report
    • Peer Reviewed
  • [Journal Article] Examples and applications of generalized gyrovector spaces2017

    • Author(s)
      Osamu Hatori
    • Journal Title

      Results in Mathematics

      Volume: 71 Issue: 1-2 Pages: 295-317

    • DOI

      10.1007/s00025-016-0576-1

    • Related Report
      2016 Research-status Report
    • Peer Reviewed / Acknowledgement Compliant
  • [Journal Article] Spectral conditions for Jordan *-homomorphisms on operator algebras2017

    • Author(s)
      Osamu Hatori and Lajos Molnar
    • Journal Title

      Studia Mathematica

      Volume: 236 Issue: 2 Pages: 101-126

    • DOI

      10.4064/sm8393-8-2016

    • Related Report
      2016 Research-status Report
    • Peer Reviewed / Int'l Joint Research
  • [Journal Article] Commuting pairs of self-adjoint elements in C*-algebras2017

    • Author(s)
      Osamu Hatori
    • Journal Title

      Mathematica Slovaca

      Volume: 67 Issue: 1 Pages: 209-212

    • DOI

      10.1515/ms-2016-0259

    • Related Report
      2016 Research-status Report
    • Peer Reviewed
  • [Journal Article] Peculiar homomorphisms on algebras of vector-valued continuously differentiable maps2017

    • Author(s)
      Osamu Hatori, Shiho Oi and HIroyuki Takagi
    • Journal Title

      Linear and Nonlinear Analysis

      Volume: -

    • Related Report
      2016 Research-status Report
    • Peer Reviewed / Acknowledgement Compliant
  • [Journal Article] Extension of isometries in the generalized gyrovector spaces of the positive cone2017

    • Author(s)
      Osamu Hatori
    • Journal Title

      Contemporary Mathematics

      Volume: -

    • Related Report
      2016 Research-status Report
    • Peer Reviewed
  • [Journal Article] Surjective isometries on the Banach space of continuously differentiable functions2017

    • Author(s)
      Takeshi Miura and Hiroyuki Takagi
    • Journal Title

      Contemporary Mathematics

      Volume: -

    • Related Report
      2016 Research-status Report
    • Peer Reviewed
  • [Journal Article] Finitely generated gyrovector subspaces and orthogonal gyrodecomposition in the M\"obius gyrovector space2017

    • Author(s)
      Toshikazu Abe and Keiich Watanabe
    • Journal Title

      Journal of Mathematical Analysis and Applications

      Volume: 449 Issue: 1 Pages: 77-90

    • DOI

      10.1016/j.jmaa.2016.11.039

    • Related Report
      2016 Research-status Report
    • Peer Reviewed
  • [Journal Article] The equivalence of gyrocommutative gyrogroups and K-loops2017

    • Author(s)
      Toshikazu Abe
    • Journal Title

      Nihonkai Mathematical Journal

      Volume: -

    • Related Report
      2016 Research-status Report
    • Peer Reviewed
  • [Journal Article] A Mazur-Ulam theorem for normed gyrolinear spaces2017

    • Author(s)
      Toshikazu Abe
    • Journal Title

      Contemporary Mathematics

      Volume: -

    • Related Report
      2016 Research-status Report
    • Peer Reviewed
  • [Journal Article] On a characterization of commutativity for C*-algebras via gyrogrouop operations2016

    • Author(s)
      Toshikazu Abe and Osamu Hatori
    • Journal Title

      Periodica Mathematica Hugarica

      Volume: 72 Issue: 2 Pages: 248-251

    • DOI

      10.1007/s10998-016-0126-3

    • Related Report
      2016 Research-status Report
    • Peer Reviewed
  • [Journal Article] A characterization of multipliers of a Lau algebra constructed by semisimple commutative Banach algebras2016

    • Author(s)
      Sin-Ei Takahasi, Hiroyuki Takagi and Takeshi Miura
    • Journal Title

      Taiwanese Journal of Mathematics

      Volume: 20 Issue: 6 Pages: 1401-1415

    • DOI

      10.11650/tjm.20.2016.7386

    • Related Report
      2016 Research-status Report
    • Peer Reviewed / Open Access
  • [Presentation] 2-local isometries on spaces of continuous functions2019

    • Author(s)
      Osamu Hatori
    • Organizer
      Research on isometries as preserver problems and related topics
    • Related Report
      2018 Annual Research Report
    • Invited
  • [Presentation] 2-local isometries on the groups of all surjective isometries2019

    • Author(s)
      羽鳥 理
    • Organizer
      つくばセミナー
    • Related Report
      2018 Annual Research Report
  • [Presentation] メビウスジャイロベクトル空間の構造について2019

    • Author(s)
      阿部 敏一
    • Organizer
      2018年度つくばセミナー
    • Related Report
      2018 Annual Research Report
  • [Presentation] Surjective isometries on Banach algebras of Lipschitz maps2018

    • Author(s)
      Osamu Hatori
    • Organizer
      日本数学会2018年度年会
    • Related Report
      2018 Annual Research Report
  • [Presentation] Hermitian operators and isometries on Banach algebras of continuous maps with vaues in unital C*-algebras2018

    • Author(s)
      Osamu Hatori
    • Organizer
      Recent Trends in Operator Theory and Applications
    • Related Report
      2018 Annual Research Report
    • Int'l Joint Research / Invited
  • [Presentation] Isometries on algebras of continuous maps with values in unital C*-algebras2018

    • Author(s)
      Osamu Hatori
    • Organizer
      International Conference on Mathematics and Statistics
    • Related Report
      2018 Annual Research Report
    • Int'l Joint Research / Invited
  • [Presentation] The Banach-Stone theorem revisited2018

    • Author(s)
      羽鳥 理
    • Organizer
      第92回米沢数学セミナー
    • Related Report
      2018 Annual Research Report
  • [Presentation] A geometric inequality and its application2018

    • Author(s)
      Osamu Hatori
    • Organizer
      Seminar in Department of Mathematica Analysis, University of Granada
    • Related Report
      2018 Annual Research Report
    • Invited
  • [Presentation] A geometric inequality and its application2018

    • Author(s)
      Osamu Hatori
    • Organizer
      Workshop on the frontiers between functional analysis and algebra (WFFAA) A TRIBUTE TO PROF. AMIN KAIDI
    • Related Report
      2018 Annual Research Report
    • Int'l Joint Research / Invited
  • [Presentation] A geometric inequality and isometries on the positive cone2018

    • Author(s)
      Toshikazu Abe and Osamu Hatori
    • Organizer
      日本数学会2018年度秋期総合分科会
    • Related Report
      2018 Annual Research Report
  • [Presentation] A Problem on isometries on positive cones and a geometric inequality2018

    • Author(s)
      Osamu Hatori
    • Organizer
      Seminar at the Departments of Analysis at the University of Szeged
    • Related Report
      2018 Annual Research Report
    • Invited
  • [Presentation] A Problem on isometries on positive cones and a geometric inequality2018

    • Author(s)
      Osamu Hatori
    • Organizer
      Seminar at the Budapest University of Technology and Economics
    • Related Report
      2018 Annual Research Report
    • Invited
  • [Presentation] 2-local surjective isometries on some spaces of continuous functions2018

    • Author(s)
      Osamu Hatori
    • Organizer
      Conference on Function Algebras 2018
    • Related Report
      2018 Annual Research Report
    • Invited
  • [Presentation] Surjective isometries on a Lipschitz space of analytic functions on the open unit disc2018

    • Author(s)
      Osamu Hatori and Takeshi Miura
    • Organizer
      Conference on Function Algebras 2018
    • Related Report
      2018 Annual Research Report
  • [Presentation] C^1([0,1])上の種々のノルムに関する等距離写像2018

    • Author(s)
      川村 一宏,古清水 大直,三浦 毅
    • Organizer
      日本数学会
    • Related Report
      2018 Annual Research Report
  • [Presentation] Generalized bi-circular idempotents on C^1([0,1])2018

    • Author(s)
      F.Botelho,三浦 毅
    • Organizer
      日本数学会
    • Related Report
      2018 Annual Research Report
  • [Presentation] 2-local isometries on C^12018

    • Author(s)
      古清水 大直,三浦 毅
    • Organizer
      関数環研究集会
    • Related Report
      2018 Annual Research Report
  • [Presentation] Surjective isometries on a Banach space of analytic functions on the open unit disc2018

    • Author(s)
      三浦 毅,丹羽 典朗
    • Organizer
      関数環研究集会
    • Related Report
      2018 Annual Research Report
  • [Presentation] Isometries on a Lipschits space of analytic functions2018

    • Author(s)
      Takeshi Miura
    • Organizer
      Seminar in Departamento de Analisis Matematico
    • Related Report
      2018 Annual Research Report
    • Invited
  • [Presentation] Isometries on a Lipschits space of analytic functions2018

    • Author(s)
      Takeshi Miura
    • Organizer
      Workshop on the Frontiers between Functional Analysis and Algebra
    • Related Report
      2018 Annual Research Report
    • Int'l Joint Research / Invited
  • [Presentation] Isometries on $C^1$ space on $[0,1]$ with values in a uniform algebras2018

    • Author(s)
      Takeshi Miura
    • Organizer
      International Conference on Mathematics and Statistics
    • Related Report
      2018 Annual Research Report
    • Int'l Joint Research / Invited
  • [Presentation] 平均を代数的中点にもつ代数構造について2018

    • Author(s)
      阿部 敏一
    • Organizer
      第55回関東作用素論セミナー
    • Related Report
      2018 Annual Research Report
  • [Presentation] Algebraic structures for means2018

    • Author(s)
      Toshikazu Abe
    • Organizer
      2018年度関数環研究集会
    • Related Report
      2018 Annual Research Report
  • [Presentation] Algebraic structures on R^+ for means2018

    • Author(s)
      Toshikazu Abe
    • Organizer
      Research on isometries as preserver problems and related topics
    • Related Report
      2018 Annual Research Report
  • [Presentation] Isometries on admissible quadruples2018

    • Author(s)
      Osamu Hatori
    • Organizer
      RIMS共同研究(公開型)等距離写像理論と保存問題の多様な視点からの研究
    • Related Report
      2017 Research-status Report
    • Invited
  • [Presentation] Isometries on uniform algebra valued C^1-spaces2018

    • Author(s)
      三浦 毅
    • Organizer
      RIMS共同研究(公開型)等距離写像理論と保存問題の多様な視点からの研究
    • Related Report
      2017 Research-status Report
    • Invited
  • [Presentation] 作用素論・作用素環論研究集会 2017 (立命館大学びわこ・くさつキャンパス 草津市)2018

    • Author(s)
      Toshikazu Abe
    • Organizer
      RIMS共同研究(公開型)等距離写像理論と保存問題の多様な視点からの研究
    • Related Report
      2017 Research-status Report
    • Invited
  • [Presentation] Hermitian operators on vector-valued Lipschitz algebras2017

    • Author(s)
      羽鳥 理
    • Organizer
      日本数学会2017年度年会 函数解析学分科会
    • Related Report
      2017 Research-status Report
  • [Presentation] Lumer's method for certain admissible quadruples2017

    • Author(s)
      Osamu Hatori
    • Organizer
      Methods in Operator Theory and Applications (University of Memphis, USA)
    • Related Report
      2017 Research-status Report
    • Int'l Joint Research / Invited
  • [Presentation] Homomorphisms and isometries on Banach algebras of vector-valued maps2017

    • Author(s)
      Osamu Hatori
    • Organizer
      Preservers everhwhere (Univ. Szeged, Hungary)
    • Related Report
      2017 Research-status Report
    • Int'l Joint Research / Invited
  • [Presentation] Isometries on admissible quadruples2017

    • Author(s)
      Osamu Hatori
    • Organizer
      第91回米沢数学セミナー (山形大学工学部 米沢市)
    • Related Report
      2017 Research-status Report
  • [Presentation] A geometric inequality on the poisive cone and an application2017

    • Author(s)
      Osamu Hatori
    • Organizer
      Positivity IX (University of Alberta カナダ)
    • Related Report
      2017 Research-status Report
    • Int'l Joint Research
  • [Presentation] Peculiar homomorphisms on admissible quadruples2017

    • Author(s)
      羽鳥 理
    • Organizer
      日本数学会秋季綜合分科会 (山形大学理学部 山形市)
    • Related Report
      2017 Research-status Report
  • [Presentation] On Example 8 of the paper of Jarosz and Pathak2017

    • Author(s)
      Osamu Hatori
    • Organizer
      2017 Conference on Function Algebras (Nihon University)
    • Related Report
      2017 Research-status Report
  • [Presentation] 関数空間上の等距離写像の性質2017

    • Author(s)
      三浦 毅
    • Organizer
      日本数学会2017年度年会 函数解析学分科会
    • Related Report
      2017 Research-status Report
  • [Presentation] I型半単純可換Banach環の分類について2017

    • Author(s)
      髙橋 眞映,三浦 毅,高木 啓行,井上 純治
    • Organizer
      日本数学会2017年度年会 函数解析学分科会
    • Related Report
      2017 Research-status Report
  • [Presentation] Norms and isometries on C^1([0,1])2017

    • Author(s)
      Takeshi Miura
    • Organizer
      Methods in Operator Theory and Applications (The University of Memphis)
    • Related Report
      2017 Research-status Report
    • Int'l Joint Research / Invited
  • [Presentation] Norms on C^1([0,1]) and their surjective isometries2017

    • Author(s)
      Takeshi Miura
    • Organizer
      Preservers everhwhere (Univ. Szeged, Hungary)
    • Related Report
      2017 Research-status Report
    • Int'l Joint Research / Invited
  • [Presentation] C^1([0,1])上の等距離写像2017

    • Author(s)
      三浦 毅
    • Organizer
      日本数学会秋季綜合分科会 (山形大学理学部 山形市)
    • Related Report
      2017 Research-status Report
  • [Presentation] sometries on C^1-spaces of C(X)-valued functions2017

    • Author(s)
      Takeshi Miura
    • Organizer
      2017 Conference on Function Algebras (Nihon University)
    • Related Report
      2017 Research-status Report
  • [Presentation] ジャイロ群に基づく線形空間の一般化とその部分空間2017

    • Author(s)
      阿部 敏一
    • Organizer
      第44回関東作用素論セミナー (東京理科大学神楽坂キャンパス 東京都)
    • Related Report
      2017 Research-status Report
    • Invited
  • [Presentation] 正定値行列全体のジャイロ構造について2017

    • Author(s)
      阿部 敏一
    • Organizer
      作用素論・作用素環論研究集会 2017 (立命館大学びわこ・くさつキャンパス 草津市)
    • Related Report
      2017 Research-status Report
    • Invited
  • [Presentation] Comparison of the gyrocentroid and the geometric mean defined by Honma2017

    • Author(s)
      羽鳥 理
    • Organizer
      つくばセミナー
    • Place of Presentation
      筑波大学自然科学系棟D814(茨城県つくば市)
    • Related Report
      2016 Research-status Report
  • [Presentation] $C^1([0,1])$上の種々のノルムに関する等距離写像2017

    • Author(s)
      三浦 毅
    • Organizer
      第4回山陰基礎論・解析学研究集会
    • Place of Presentation
      国際ファミリープラザ(鳥取県米子市)
    • Related Report
      2016 Research-status Report
  • [Presentation] ジャイロ群に基づく線形空間の一般化2017

    • Author(s)
      阿部 敏一
    • Organizer
      第4回山陰基礎論・解析学研究集会
    • Place of Presentation
      国際ファミリープラザ(鳥取県米子市)
    • Related Report
      2016 Research-status Report
  • [Presentation] Homomorphisms on vector-valued Banach function algebras2016

    • Author(s)
      Osamu Hatori, Shiho Oi and Hiroyuki Takagi
    • Organizer
      第90回米沢数学セミナー
    • Place of Presentation
      山形大学工学部 百周年記念会館セミナールーム (山形県米沢市)
    • Related Report
      2016 Research-status Report
  • [Presentation] On isometries of vector-valued Lipschitz algebras2016

    • Author(s)
      Osamu Hatori and Shiho Oi
    • Organizer
      第90回米沢数学セミナー
    • Place of Presentation
      山形大学工学部 百周年記念会館セミナールーム (山形県米沢市)
    • Related Report
      2016 Research-status Report
  • [Presentation] Isometries on algebras of Lipschitz functions with values in commutative C*-algebras2016

    • Author(s)
      Osamu Hatori
    • Organizer
      20th conference of the international linear algebra society
    • Place of Presentation
      Leuven (Belgium)
    • Related Report
      2016 Research-status Report
    • Int'l Joint Research / Invited
  • [Presentation] Peculiar homomorphisms on commutative Banach algebras of vector-valued functions2016

    • Author(s)
      Osamu Hatori, Shiho Oi and Hiroyuki Takagi
    • Organizer
      Reseaches on isometries from various viewpoints
    • Place of Presentation
      京都大学数理解析研究所(京都府京都市)
    • Related Report
      2016 Research-status Report
    • Int'l Joint Research / Invited
  • [Presentation] Peculiar isomorphisms on algebras of Lipsichtz maps with values in uniform algebras2016

    • Author(s)
      Osamu Hatori, Shiho Oi and Hiroyuki Takagi
    • Organizer
      Workshop in Nara University of Education 2016
    • Place of Presentation
      奈良商工会議所(奈良県奈良市)
    • Related Report
      2016 Research-status Report
    • Int'l Joint Research
  • [Presentation] Commuting paires of normal operators2016

    • Author(s)
      Osamu Hatori
    • Organizer
      Presrver Problems and Their Related Topics
    • Place of Presentation
      日本大学理工学部(駿河台校舎)(東京都千代田区)
    • Related Report
      2016 Research-status Report
  • [Presentation] Commutativity for C*-algebras via gyrogroup operations2016

    • Author(s)
      Toshikazu Abe and Osamu Hatori
    • Organizer
      2016年度関数環研究集会
    • Place of Presentation
      茨城大学工学部(茨城県日立市)
    • Related Report
      2016 Research-status Report
  • [Presentation] Commutativity of self-adjoint elements2016

    • Author(s)
      Osamu Hatori
    • Organizer
      2016年度関数環研究集会
    • Place of Presentation
      茨城大学工学部(茨城県日立市)
    • Related Report
      2016 Research-status Report
  • [Presentation] Surjective isometries on $C^1[0,1]$ with respect to several norms2016

    • Author(s)
      Takeshi Miura
    • Organizer
      Researches on isometries from various viewpoints
    • Place of Presentation
      京都大学数理解析研究所(京都府京都市)
    • Related Report
      2016 Research-status Report
    • Int'l Joint Research
  • [Presentation] A Lau algebra of type I defined by semi simple commutative Banach algebras2016

    • Author(s)
      Sin-Ei Takahasi, Hiroyuki Takagi and Takeshi Miura
    • Organizer
      Researches on isometries from various viewpoints
    • Place of Presentation
      京都大学数理解析研究所(京都府京都市)
    • Related Report
      2016 Research-status Report
    • Int'l Joint Research
  • [Presentation] Isometries between function spaces on the unit circle2016

    • Author(s)
      Miura Takeshi
    • Organizer
      Preserver problems and their related topics
    • Place of Presentation
      日本大学理工学部(駿河台校舎)(東京都千代田区)
    • Related Report
      2016 Research-status Report
  • [Presentation] Surjective isometries on $C^1([0,1])$ with respect to a norm derived from plane figures2016

    • Author(s)
      Hironao Koshimizu and Takeshi Miura
    • Organizer
      関数環研究集会
    • Place of Presentation
      茨城大学工学部(茨城県日立市)
    • Related Report
      2016 Research-status Report
  • [Presentation] Gyrometric preservers on normed gyrolinear spaces2016

    • Author(s)
      Toshikazu Abe
    • Organizer
      20th Conference of the International Linear Algebra Sociaty
    • Place of Presentation
      Leuven (Belgium)
    • Related Report
      2016 Research-status Report
    • Int'l Joint Research
  • [Presentation] Gyrolinear spaces2016

    • Author(s)
      阿部 敏一
    • Organizer
      Workshop in Nara University of Education 2016
    • Place of Presentation
      奈良商工会議所 (奈良県奈良市)
    • Related Report
      2016 Research-status Report
    • Int'l Joint Research
  • [Presentation] Subspaces of the positive denite cones2016

    • Author(s)
      Toshikazu Abe
    • Organizer
      Preserver Problems and Their Related Topucs
    • Place of Presentation
      Nihon University(東京都千代田区)
    • Related Report
      2016 Research-status Report
  • [Presentation] Subspaces of the 2X2 positive invertible real matrices2016

    • Author(s)
      Toshikazu Abe
    • Organizer
      2016 年度関数環研究集会
    • Place of Presentation
      茨城大学(茨城県日立市)
    • Related Report
      2016 Research-status Report
  • [Presentation] 線形空間に類似した構造を持つジャイロ群について2016

    • Author(s)
      阿部 敏一
    • Organizer
      2016 年度ジェネラルトポロジーシンポジウム
    • Place of Presentation
      筑波大学(茨城県つくば市)
    • Related Report
      2016 Research-status Report
  • [Funded Workshop] Workshop in Nara University of Education 2016(The international meeting on Commutative algebra, Banach algebras (preserver problem), Hypergroups and their related topics)2016

    • Place of Presentation
      奈良教育大学
    • Year and Date
      2016-11-04
    • Related Report
      2016 Research-status Report

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Published: 2016-04-21   Modified: 2022-02-16  

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