B(H)-Commutators: A Historical Survey
نویسنده
چکیده
This is a historical survey that includes a progress report on the 1971 seminal paper of Pearcy and Topping and 32 years of subsequent investigations by a number of researchers culminating in a completely general characterization, for arbitrary ideal pairs, of their commutator ideal in terms of arithmetic means. This characterization has applications to the study of generalized traces, linear functionals vanishing on a certain commutator ideal, and to the study of the B(H)-ideal lattice and certain special sublattices. The structure of commutator ideals is essential for investigating traces which in turn is relevant for the calculation of the cyclic homology and the algebraic K-theory of operator ideals. Mathematics Subject Classification (2000). 32403, 41403, 42103.
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