Sums of idempotents and a lemma of N. J. Kalton
Studia Mathematica, Tome 121 (1996) no. 2, pp. 185-192

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A lemma of Gelfand-Hille type is proved. It is used to give an improved version of a result of Kalton on sums of idempotents.
DOI : 10.4064/sm-121-2-185-192

Graham R. Allan 1

1
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Graham R. Allan. Sums of idempotents and a lemma of N. J. Kalton. Studia Mathematica, Tome 121 (1996) no. 2, pp. 185-192. doi: 10.4064/sm-121-2-185-192

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