Abstract
Trace inequalities for multiple products of powers of two matrices are discussed via the methodof logmajorization. For instance, the trace inequality |Tr(Ap1Bq1Ap2Bq2 · · ·ApK BqK )| Tr(AB) is obtained for positive semidefinite matrices A,B and pi, qi 0 with p1 + · · ·+pK = q1 + · · · + qK = 1 under some additional condition. Mathematics subject classification (1991): 15A45, 15A42, 15A60, 47A30. Keywordsandphrases: Positive semidefinitematrices, trace inequalities, Golden-Thompson inequality, log majorization.
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