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A quantitative version of the commutator theorem for zero trace matrices
2012
Proceedings of the National Academy of Sciences of the United States of America
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Let A be a m× m complex matrix with zero trace and let >0. Then there are m× m matrices B and C such that A=[B,C] and BC< K_ m^A where K_ depends only on . Moreover, the matrix B can be taken to be normal.
doi:10.1073/pnas.1202411109
fatcat:6qj5lkjtivhwjktw7shfkzzmgi