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A note on Dunford-Pettis operators
Published online by Cambridge University Press: 18 May 2009
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Talagrand has shown [4, p. 76] that there exists a continuous linear operator from L1[0, 1] to c0 which is not a Dunford-Pettis operator. In contrast to this result, Gretsky and Ostroy [2] have recently proved that every positive operator from L[0, 1] to c0 is a Dunford-Pettis operator, hence that every regular operator between these spaces (i.e. a difference of positive operators) is Dunford-Pettis.
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- Copyright © Glasgow Mathematical Journal Trust 1987
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