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Spectrally Bounded Higher Derivations Mapping into the Jacobson Radical

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We obtain commutativity-free characterizations of higher derivations on a unital Banach algebra that map into its Jacobson radical. We also investigate the spectral boundedness of generalized higher derivations.

Abstract

We obtain commutativity-free characterizations of higher derivations on a unital Banach algebra that map into its Jacobson radical. We also investigate the spectral boundedness of generalized higher derivations.

참고문헌 (7)

  1. M. Bresar, "On the distance of the compositions of two derivations to the generalized derivations", Glasgow Math. J., 33, pp.89~93 (1991)
  2. M. Bresar, "Derivations mapping into the radical, III", J. Func. Anal., 133, pp.21~29 (1995)
  3. N. P. Jewell, "Continuity of module and higher derivations", Pacific J. Math., 68, pp.91~98 (1977)
  4. K. -W. Jun, "The image of a continuous strong higher derivation is contained in the radical", Bull. Korean Math. Soc., 33, pp.229~233 (1996)
  5. R. J. Roy, "A class of topological algebras of formal power series" (1969)
  6. I. M. Singer, "Derivations on commutative normed algebras", Math. Ann., 129, pp.260~264 (1955)
  7. M. P. Thomas, "The image of a derivation is contained in the radical", Ann. of Math., 128(2), pp.435~460 (1988)

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