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Jordan Derivations on Prime Rings and Their Applications in Banach Algebras, I

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The purpose of this paper is to prove that the noncom-mutative version of the Singer-Wermer Conjecture is affirmative undercertain conditions. Let A be a noncommutative Banach algebra. Sup-pose there exists a continuous linear Jordan derivation D : A→ A suchthat D(x)3[D(x), x] ∈ rad(A) for all x ∈ A. In this case, we show that D(A) ⊆ rad(A).

Abstract

The purpose of this paper is to prove that the noncom-mutative version of the Singer-Wermer Conjecture is affirmative undercertain conditions. Let A be a noncommutative Banach algebra. Sup-pose there exists a continuous linear Jordan derivation D : A→ A suchthat D(x)3[D(x), x] ∈ rad(A) for all x ∈ A. In this case, we show that D(A) ⊆ rad(A).

참고문헌 (15)

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  9. 김병도, "Jordan Derivations of Semiprime Rings and Noncommutative Banach Algebras, II", 순수 및 응용수학, 15(3), pp.259~296 (2008), 한국수학교육학회
  10. 박규홍, "ON CONTINUOUS LINEAR JORDAN DERIVATIONS OF BANACH ALGEBRAS", 순수 및 응용수학, 16(2), pp.227~241 (2009), 한국수학교육학회
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