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Characterizations of Jordan *-derivations on Banach *-algebras

Received: 11 August 2020     Accepted: 18 September 2020     Published: 28 October 2020
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Abstract

Suppose that is a real or complex unital Banach *-algebra, is a unital Banach -bimodule, and G ∈ is a left separating point of . In this paper, we investigate whether the additive mapping δ: satisfies the condition A,B, AB = G ⇒ Aδ(B)+δ(A)B*= δ(G) characterize Jordan *-derivations. Initially, we prove that if is a real unital C*-algebra and G = I is the unit element in , then δ (non-necessarily continuous) is a Jordan *-derivation. In addition, we prove that if is a real unital C*-algebra and δ is continuous, then δ is a Jordan *-derivation. Finally, we show that if is a complex factor von Neumann algebra and δ is linear, then δ (non-necessarily continuous) is equal to zero.

Published in Pure and Applied Mathematics Journal (Volume 9, Issue 5)
DOI 10.11648/j.pamj.20200905.13
Page(s) 96-100
Creative Commons

This is an Open Access article, distributed under the terms of the Creative Commons Attribution 4.0 International License (http://creativecommons.org/licenses/by/4.0/), which permits unrestricted use, distribution and reproduction in any medium or format, provided the original work is properly cited.

Copyright

Copyright © The Author(s), 2020. Published by Science Publishing Group

Keywords

Jordan *-derivation, Left Separating Point, C*-algebra, Factor

References
[1] M. Breˇ sar and J. Vukman. On some additive mappings in rings with involution, Aequ. Math., 3 (1989), 178-185.
[2] M. Breˇ sar and B. Zalar. On the structure of Jordan ∗-derivations, Colloq. Math., 63 (1992), 163-171.
[3] Q. Chen, C. Li, X. Fang. Jordan (α,β)-derivations on CSL subalgebras of von Neumann algebras, Acta. Math. Sin., 60 (2017), 537-546.
[4] S. Goldstein and A. Paszkiewicz, Linear combinations of projections in von Neumann algebras, Proc. Amer. Math. Soc., 116 (1992), 175-183.
[5] J. He, J. Li, D. Zhao, Derivations, Local and 2-local derivations on some algebras of operators on Hilbert Csup>*-modules, Mediterr. J. Math., 14, 230 (2017).
[6] S. Kurepa. Quadratic and sesquilinear functionals, Glasnik Mat. Fiz.-Astronom, 20 (1965), 79-92. 106 Guangyu An and Ying Yao: Characterizations of Jordan ∗-derivations on Banach ∗-algebras
[7] L. Liu. 2-Local Lie derivations of nest subalgebras of factors, Linear and Multilinear algebra, 67 (2019), 448-455.
[8] D. Liu, J. Zhang. Local Lie derivations on certain operator algebras, Ann. Funct. Anal., 8 (2017), 270-280.
[9] X. Qi and X. Zhang. Characterizations of Jordan ∗- derivations by local action on rings with involution, Journal of Hyperstructures, 6 (2017), 120-127.
[10] P. ˇSemrl. On Jordan ∗-derivations and an application,Colloq. Math., 59 (1990), 241-251.
[11] P.ˇSemrl. Jordan ∗-derivations of standard operator algebras, Proc. Amer. Math. Soc., 120 (1994), 515-518.
[12] P.ˇSemrl. On quadratic functionals, Bull. Austral. Math. Soc., 37 (1988), 27-28.
[13] P. ˇSemrl. Quadratic functionals and Jordan ∗-derivations, Studia Math., 97 (1991), 157-165.
[14] P. Vrbová, Quadratic functionals and bilinear forms, Casopis Pest. Mat., 98 (1973), 159-161.
[15] J. Vukman, Some functional equations in Banach algebras and an application, Proc. Amer. Math. Soc., 100 (1987), 133-136.
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  • APA Style

    Guangyu An, Ying Yao. (2020). Characterizations of Jordan *-derivations on Banach *-algebras. Pure and Applied Mathematics Journal, 9(5), 96-100. https://doi.org/10.11648/j.pamj.20200905.13

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    ACS Style

    Guangyu An; Ying Yao. Characterizations of Jordan *-derivations on Banach *-algebras. Pure Appl. Math. J. 2020, 9(5), 96-100. doi: 10.11648/j.pamj.20200905.13

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    AMA Style

    Guangyu An, Ying Yao. Characterizations of Jordan *-derivations on Banach *-algebras. Pure Appl Math J. 2020;9(5):96-100. doi: 10.11648/j.pamj.20200905.13

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  • @article{10.11648/j.pamj.20200905.13,
      author = {Guangyu An and Ying Yao},
      title = {Characterizations of Jordan *-derivations on Banach *-algebras},
      journal = {Pure and Applied Mathematics Journal},
      volume = {9},
      number = {5},
      pages = {96-100},
      doi = {10.11648/j.pamj.20200905.13},
      url = {https://doi.org/10.11648/j.pamj.20200905.13},
      eprint = {https://article.sciencepublishinggroup.com/pdf/10.11648.j.pamj.20200905.13},
      abstract = {Suppose that  is a real or complex unital Banach *-algebra,  is a unital Banach -bimodule, and G ∈  is a left separating point of . In this paper, we investigate whether the additive mapping δ:  → satisfies the condition A,B ∈ , AB = G ⇒ Aδ(B)+δ(A)B*= δ(G) characterize Jordan *-derivations. Initially, we prove that if  is a real unital C*-algebra and G = I is the unit element in , then δ (non-necessarily continuous) is a Jordan *-derivation. In addition, we prove that if  is a real unital C*-algebra and δ is continuous, then δ is a Jordan *-derivation. Finally, we show that if  is a complex factor von Neumann algebra and δ is linear, then δ (non-necessarily continuous) is equal to zero.},
     year = {2020}
    }
    

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  • TY  - JOUR
    T1  - Characterizations of Jordan *-derivations on Banach *-algebras
    AU  - Guangyu An
    AU  - Ying Yao
    Y1  - 2020/10/28
    PY  - 2020
    N1  - https://doi.org/10.11648/j.pamj.20200905.13
    DO  - 10.11648/j.pamj.20200905.13
    T2  - Pure and Applied Mathematics Journal
    JF  - Pure and Applied Mathematics Journal
    JO  - Pure and Applied Mathematics Journal
    SP  - 96
    EP  - 100
    PB  - Science Publishing Group
    SN  - 2326-9812
    UR  - https://doi.org/10.11648/j.pamj.20200905.13
    AB  - Suppose that  is a real or complex unital Banach *-algebra,  is a unital Banach -bimodule, and G ∈  is a left separating point of . In this paper, we investigate whether the additive mapping δ:  → satisfies the condition A,B ∈ , AB = G ⇒ Aδ(B)+δ(A)B*= δ(G) characterize Jordan *-derivations. Initially, we prove that if  is a real unital C*-algebra and G = I is the unit element in , then δ (non-necessarily continuous) is a Jordan *-derivation. In addition, we prove that if  is a real unital C*-algebra and δ is continuous, then δ is a Jordan *-derivation. Finally, we show that if  is a complex factor von Neumann algebra and δ is linear, then δ (non-necessarily continuous) is equal to zero.
    VL  - 9
    IS  - 5
    ER  - 

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Author Information
  • Department of Mathematics, Shaanxi University of Science and Technology, Xi’an, China

  • Department of Mathematics, Shaanxi University of Science and Technology, Xi’an, China

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