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Very few Banach spaces E are known for which the lattice of closed ideals in the Banach algebra B(E) 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 c 0 and p for 1 p < ∞. We add a new member to this family by showing that there are… (More)
A properly innite C *-algebra has no non-zero traces. We construct properly innite Banach *-algebras with non-zero, bounded traces, and show that there are even such algebras which are fairly`close' to the class of C *-algebras, in the sense that they can be hermitian or *-semisimple.
The purpose of this study was to evaluate a dental prophylaxis paste containing mono-copper citrate (MCC) for short term anti-plaque capabilities. In addition to other baseline data, plaque scores were recorded on 36 paid volunteer subjects from the dental school student, staff, and faculty populations. After scaling, two quadrants of each subject's… (More)