On Kadec-Klee norms on Banach spaces
Dick van Dulst, Ivan Singer (1976)
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Dick van Dulst, Ivan Singer (1976)
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Jakub Onufry Wojtaszczyk (2005)
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In finite-dimensional spaces the sum range of a series has to be an affine subspace. It has long been known that this is not the case in infinite-dimensional Banach spaces. In particular in 1984 M. I. Kadets and K. Woźniakowski obtained an example of a series whose sum range consisted of two points, and asked whether it was possible to obtain more than two, but finitely many points. This paper answers this question affirmatively, by showing how to obtain an arbitrary finite set as the...
Bernard Aupetit, Martin Mathieu (2000)
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We prove that the separating space of a Lie homomorphism from a Banach algebra onto a Banach algebra is contained in the centre modulo the radical.
A. Alexiewicz (1963)
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Z. Semadeni (1963)
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J. Strelcyn (1970)
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Steven Bellenot (1978)
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Kamil John, Václav Zizler (1976)
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H. Brown, F. Cass, I. Robinson (1978)
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Gerald J. Murphy, Timothy Trevor West (1980)
Commentationes Mathematicae Universitatis Carolinae
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