Laustsen, NielsLoy, RichardRead, Charles2015-12-130022-1236http://hdl.handle.net/1885/86026Very few Banach spaces E are known for which the lattice of closed ideals in the Banach algebra ℬ (B) 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 tKeywords: Banach algebra; Banach space; Ideal lattice; Operator200410.1016/j.jfa.2004.02.0092015-12-12