Acta mathematica scientia,Series A ›› 2014, Vol. 34 ›› Issue (2): 463-472.

• Articles • Previous Articles    

Characterization of Centralizers and Generalized Derivations on J-Subspace Lattice Algebras

 QI Xiao-Fei   

  1. School of Mathematics, Shanxi University, Taiyuan 030006
  • Received:2012-06-26 Revised:2013-09-15 Online:2014-04-25 Published:2014-04-25
  • Supported by:

    国家自然科学基金(11101250)和山西省青年科技基金(2012021004) 资助.

Abstract:

Let L be a J-subspace lattice on a Banach space X and AlgL the associated J-subspace lattice algebra. Assume that Φ: AlgL→AlgL is an additive map and dimK≥2 for every KJ(L).  It is shown that the following statements are equivalent: (1) Φ is a centralizer; (2) Φ sataisies Φ(A)B=AΦ(B)=0 whenever A, B∈AlgL with AB=0; (3) Φ satisfies Φ(A)B+Φ(B)A=AΦ(B)+B\Φ(A)=0 whenever A, B∈AlgL with  AB+BA=0; (4) Φ satisfies Φ(A)BC+Φ(C)BA=ABΦ(C)+CBΦ(A)=0 whenever A, B∈AlgL with ABC+CBA=0. As an application, additive maps generalized derivable at zero on AlgL are characterized.

Key words: J-subspace lattice algebras, Centralizers, Generalized derivations

CLC Number: 

  • 47L35
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