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The lattice of closed ideals in the Banach algebra of operators on certain Banach spaces.

By Niels Jakob Laustsen, Richard J. Loy and Charles J. Read


Very few Banach spaces E are known for which the lattice of closed ideals in the Banach algebra of all (bounded, linear) operators on E is fully understood. Indeed, up to now the only such Banach spaces are, up to isomorphism, Hilbert spaces and the sequence spaces c0 and ℓp for 1p<∞. We add a new member to this family by showing that there are exactly four closed ideals in for the Banach space E(ℓ2n)c0, that is, E is the c0-direct sum of the finite-dimensional Hilbert spaces ℓ21,ℓ22,…,ℓ2n,…

Year: 2004
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Provided by: Lancaster E-Prints

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